ter county, Pennsylvania, for a simple and effectual Bar row to plant Indian corn-a medal and twenty dollars. VI. To George Harper, for two Drills, one for potatoes and one for seeds-ten dollnrs. VII. To Wm. Shotwell, for an easy garden weederfive dollars. VIII. To Robert Welford and James H. Deas, for an improved plane with frictionless rollers, for planing floors-a medal and twenty dollars. IX. To Daniel Neill, for a Vertical Printing Press-a medal and twenty dollars. X. To James Gardette, dentist, for three mechanical improvements in his profession; which are highly commended in Europe and the United States; and for a simple Lever instrument, for the easy and expeditious extraction of teeth, and stumps of teeth-a medal and twenty dollars. XI. To Jonathan Nicholls, of Providence, Rhode Island, for a portable Carriage Spring Seat-a medal and twenty dollars. XII. To John Meer, for a Razor Strop-a medal and twenty dollars. XIII. To Mrs. Frances Jones, for an improvement in the apparatus for making patent lint-twenty dollars. 1825. XIV. To Benjamin Freymuth, for a very ingenious Chamber Alarm Bell, which can be attached to a watch -a medal and five dollars. XV. To John C. Jenckes, of Providence, Rhode Island, for an Apparatus to enable persons with fractured limbs to be moved in their positions in bed, without injury-a medal and twenty dollars. 1827. XX. To Daniel Powles, of Baltimore, for a Bedstead which can be put up and taken down by any person, owing to the peculiar construction of the joints, and is proof against insects. XXI. To Danl. Powles, for a Stirrup, which effectually prevents the foot from sticking, in case a person is thrown from a horse-a medal and twenty dollars. a XXII. To James Cooper and Thomas Barnitt, for Hat-finishing Apparatus-a medal and twenty dollars. XXIII. To the Messrs. Terhoeven, brothers, of Philadelphia county, for an Apparatus which winds the silk from the cocoons, and twists and doubles it at one operation-a medal and twenty dollars. All the inventions for which premiums have been awarded, are in actual use, and highly approved of. The Committee invariably require certificates of the originality and utility of the inventions, or improve ments for which claims for premiums have been made: and descriptions of them correctly written, and in clear language, accompanied by drawings in perspective, and in detail when necessary to illustrate them. Models of some of the foregoing machines are in possession of the Society, and the operation of most of them have been witnessed by the committee. Where the invention is a composition of matter, specimens of the ingredients, and of the composition of matter sufficient in quantity for the purpose of experiment, and to preserve in the cabinet of the Society, are required. To these rules of conduct, they, during the last year, added the following, for the purpose of affording every possible chance of detecting any attempt at interference on the part of claimants, with the inventions of others. After having satisfied themselves of the utility of an invention, and resolved that it is worthy of a premium, they advertise that in three months it would be awarded, unless satisfactory testimony should in the mean time be brought forward to prove its want of originality. This regulation, which it is believed is altogether novel, it is the intention of the Committee to continue, as constituting the best guard in their power to adopt against deception. The present Committee consist of JAMES MEASE, M. D. Vice President of the Phil. Ag. Soc. ROBERT HARE, M. D.. Prof. Chem. Univ. Penn. JAMES RONALDSON, Lecturer on Mineralogy and Botany. WM. PHILLIPS. TENTH PRESBYTERIAN CHURCH. The corner stone of a new church, to be called the Tenth Presbyterian Church of Philadelphia, was laid on Monday last, at the corner of Walnut and Twelfth sts. An address on the occasion was delivered by the Rev. Dr. Green. The site for this temple is well chosen; and, we are happy to add, that such arrangements have been made by the enterprising gentlemen concerned in the work, as to secure its immediate erection. The whole of the Union Canal Loan 300,000 dollars, was taken at a premium of 4 per cent. TO THE PUBLIC. The commencement of a new volume, is a favorable period for those who have not yet subscribed for, and who wish to possess, the Register, to furnish us with their names. From an inspection of the volume which has just closed, the plan of the work as well as the manner in which it has been conducted, may be ascertained. And those who are desirous of possessing it from the commencement, may still be furnished, if application be soon made, either in numbers, at the original subscription price, or bound, at the additional price of the binds ing. Public libraries may also be supplied with the first volume, and the numbers of future volumes retained for them until the close of a volume and then bound and forwarded agreeably to directions. We need further encouragement, to enable us to sustain this work, and we hope we shall not be disappointed, in our appeal to the public spirit of our citizens, to support and patronize a publication, expressly devoted to the developement of the resources of our state, and to the preservation of facts and documents relative to its history and public improvements. No exertions on our part will be spared to render the Register still more entitled to public patronage. The printing of the Index being not entirely finished, its delivery must be delayed until early in the next week. Printed every Saturday morning by William F. Geddes, No. 59 Locust street, Philadelphia; where, and at the Editor's residence, No. 51 Filbert street, subscriptions will be thankfully received. Price five dollars per annum-payable in six months after the commencement of publication-and annually, thereafter, by subscribers resident in or near the city-or where there is an agent. Other subscribers pay in advance.. THE REGISTER OF PENNSYLVANIA. DEVOTED TO THE PRESERVATION OF EVERY KIND OF USEFUL INFORMATION RESPECTING THE STATE. EDITED BY SAMUEL HAZARD, NO. 51, FILBERT STREET. VOL. II.-NO. 2. PHILADELPHIA, JULY 26, 1828. MINERALOGICAL NOTICES. NO. 30. here as highly as it merits, is probably as well known in In the absence of a complete geological description Europe, and has done as much, if not more, by its jourof the State, which we hope soon to see accomplished;nal, to elevate the scientific character of our country the only method which at present suggests itself to us, abroad, as any other institution in the United States. In to obtain a knowledge of the various mineral treasures the various departments of natural science, it possesses which so large a section of country must contain, is to a most extensive and valuable library. Its museum, is collect the information, already possessed, from the va- scientifically arranged, and its members are extremely rious publications and numerous individuals who have devoted to the interests of the institution and of science. turned their attention to the interesting and useful study The building erected for the Swedenborgian congregaof mineralogy. As a commencement on this subject, tion, was a few years since purchased by the academy, we publish from the second part of vol. 1. of the Jour- and fitted up for the reception of its library and museum, nal of the Academy of Natural Sciences, (a work per- and we know of few objects in the city more worthy of haps better known, in Europe than in this city where it a visit from strangers than this institution. At all meetis published) "an account of the minerals at present ings excepting on one evening of each month strangers (1818) known to exist in the vicinity of Philadelphia may be present, when introduced by a member. by Isaac Lea." Since that account was published, ma hy additions have no doubt been made to the catalogue' for the completion of which, we must appeal to some of our scientific friends. As a depository for the natural productions of the county, we would therefore recommend this institution. We have no doubt the Academy would gladly set apart a portion of their room for this special object, and render any assistance in the examination of the county, in their power. It is a reflection upon the scientific character of our at the seat of government, similar to those which reflect so much credit on some of the European governments, and contribute so much to the amusement and instruction of strangers. The means for such an establishment are ample. The various public officers through the United States and those visiting foreign countries, might in a very short time, by their services and contributions, render such an institution very respectable and useful, especially if public lecturers were appointed at the expense of the government to instruct and enlighten those who would no doubt resort to Washington for the purpose of attending the lectures. It is desirable that a cabinet be, somewhere formed, in which a complete collection shall exist, of all the minerals found in the State; and we know of no place so suitable for this purpose as Harrisburg, the seat of gov-country, that we have no national museum or institute ernment; and it ought to be a STATE CABINET established by the legislature; a suitable scientific person should have the care of it, and as far as opportunity offers, devote a portion of his time to visiting the different sections of the State and collecting specimens and other information, which may in time be very useful in forming a geological map of the State. The great number of persons now employed on the different canals and other public works; and the various sections of the country, which in the prosecution of those works are explored, afford facilities to the legislature, for commencing a cabinet of which advantage should be taken, by enlisting the services of the engineers and of others In the course of debate on the question of admitting employed, requesting or requiring them to pay atten-iron free of duty for the use of rail roads; it was stated, tion to the subject, and forward to the cabinet whatever may be found worthy of preservation. Large contributions would no doubt be made by the citizens generally. Each county also might with advantage possess a county cabinet for the preservation of objects found within its bounds, which being within a short distance of every man's home, would enlist his feelings and interests in its favor, and the county would soon become thoroughly investigated. In our last volume, we furnished some account of an institution, established for this purpose in West Chester, whose example is worthy of imitation by other counties. In this city, the Academy of Natural Science, (whose journal we have noticed above) has existed for several years, and though not appreciated that a sufficient quantity could not be produced in the United States for the purpose, within the time required. We would be glad to know the quantity which may be produced annually in this state, and we solicit informa tion, from those engaged in the manufacture of iron or who live in the neighbourhood of iron works, respecting the quantity of different kinds manufactured, the name of the works or owners; the mines from which the ore is obtained; the number of persons engaged in this business; the prices at the works, &c. &c. and we will at some future period, furnish in this work as complete a list as we can obtain.. The editors of newspa pers throughout the stale, would assist much by pub. lishing this request in their papers and such information as they possess respecting the works in their neighborhood and forwarding the paper containing it, to the editor of the Register of Pennsylvania at Philadelphia. An Account of the Minerals at present known to exist in the vicinity of Philadelphia. Br ISAAC LEA. METALS. Blue Carbonate of Copper. Cuivre carbonate bleu. H. This mineral occurs in minute crystals, and in very small quantities, of a beautiful dark blue colour, at the mines on Perkiomen creek, about twenty-two miles north of the city. It is found in veins; with lead and zinc, in the old red sandstone formation. Green Carbonate of Copper. Cuivre carbonate vert. H. Malachite. W. Occurs both radiated and botryoidal of an emerald green colour. Locality and geognosy same as the last species. Red Oxide of Copper. Cuivre oxidule. H. Ruby Copper. W. Beautiful capillary crystals, translucent and of a bright red colour, have been lately discovered by Messrs. J. Lukens and B. Say, at the same place with the two for mer specimens. Copper Pyrites. Cuivre pyriteaux. H. Yellow Copper. Aiken. It occurs in amorphous masses, of a brass yellow colour and often externally iridescent, at Perkiomen, and on Chester creek, near a saw mill, three miles west of Chester, in Delaware county. At the latter place it exists in quartz, accompanied with sulphuret of molybdena. Magnetic Sulphuret of Iron. Fer sulphure ferrifere. H. Foliated Iron Ore. The iron ore known by this name here, frequently occurs in quartz rocks, seldom thicker than the eighth of an inch, and appears to be a black oxide of iron. It is found at Chestnuthill and on the Wichicon. Jaspery Iron Ore. It occurs massive, in considerable quantities, in the road near Springmills. Its fracture is flat conchoidal, colour brownish. Argillaceous Iron Ore. This species occurs in large quantities near Burling- where it is wrought in great quantities. The Hydrat of Iron. Blue Iron earth. W. Fer Phosphate. H. Arsenical Pyrites. W. Marcasite. K. Fer arsenical. H. lowish white, fracture uneven. When subjected to the blow pipe, the arsenic was volatilized in a white vapour, giving out a strong alliaceous odour. A piece of this mineral of nearly two pounds weight, We find this on the Schuylkill in small quantities, of was given me by a person on Perkiomen, who informa dark iron black, and possessing a slight metallic ap-ed me it was found in the neighbourhood. Colour, yelpearance. It is strongly attracted by the magnet. A variety, known by the name of octaedral iron, should be mentioned here. It is crystalized in regular octaedrons from one sixteenth to one half of an inch in diameter. Some of these crystals divided parallel to either face, and transposed or partly turned round, form macles of triangular formed tables, with their three sides bevelled, each end being replaced with two faces inclined towards each other. It occurs in large quantities in the talc rocks of Chestnuthill, immediately on the Wichicon creek, eastern side, ten miles from the city. Sulphuret of Iron. Iron Pyrites. W. Fer sulphure. H. In our hornblende rocks we find this mineral, generally disseminated, but sometimes in the form of cubes. It occurs also, at the mine near Chester, and at Perkiomen lead mines, crystallized in various forms, and frequently tarnished so as to present the appearance of other metals. Brown Oxide of Iron. Hematite. W. Fer oxide Hema tite. H. This species of iron ore is found at Upper Dublin, about fifteen miles north of the city. It frequently eccurs in geodes, the interior sides of which are perfectly black, and of a botryoidal, mammillary or corralloidal form: sometimes the cavity contains sand. Its construction proves it to be concretion. Some specimens have also been found on the Schuylkill. Scaly red Oxide of Iron. Red Iron Froth. W. Fer oligiste luisant. H. At the lead mines on the Perkiomen we find fine specimens of this mineral. It occurs there in scaly particles of a nearly cherry red colour; soft to the touch, and soils. It is taken out of the vein with the lead, generally incrusting some other mineral. Chromate of Iron. Fer Chromate. H Sulphuret of Lead. Galena. Aiken. Lead Glance. W. A considerable quantity of this species of lead oře has lately been taken up, by Mr. Wetherill, at the mines on Perkiomen. It occurs generally cubic, sometimes steel grained. A few specimens were found by Messrs. J. Lukens and B. Say, presenting a cube with the solid angles truncated, forming a triangular facet. It occurs here with barytes, quartz, phosphate, carbonate and molybdate of lead, and red iron froth. This vein is in the old red sandstone formation, and direction nearly north east and south west, forming a line with the mines near New Hope, Brunswick, and Schuyler's copper mine. Carbonate of Lead. White Lead Ore. W. Plomb carbo nate. H. This mineral is frequently found accompanying the last mentioned one, at the same place, generally crystallized in various forms, and presenting beautiful spe cimens. It is transparent, and more resinous than quartz. the Schuylkill, about ten miles from the city, in a rock Pistazite, both massive and crystallized, was found by Mr. Vanuxem and myself, in a large piece of quartz, Lately this variety of lead has been found by Mr. Lu- about one fourth of a mile above the upper bridge on kens, at Perkiomen, but not in any considerable quanti-the Schuylkill, western side, and nearly one hundred ties, and generally connected with quartz, or some of yards from the river. It did not appear to be exactly in the salts of lead. It much resembles the carbonate in place, as it was found on a pile of other stones. Colour, translucency, but is distinguishable by its insolubility in yellowish olive. Form hexaedral prism with diedral nitric acid. Zoizite. Epidote. H. Molybdate of Lead. Yellow Lead Ore. W. Plomb Molyb date. H. This beautiful salt of lead is found, though rarely, at Perkiomen. It occurs in small yellow waxy crystals, generally in the interstices of quartz, or connected with the other lead ores. It was first discovered by Mr. Z. Collins. Phosphate of Lead. Brown and Green Lead Ore. W. Locality same as the other salts of lead, where it occurs in beautiful pale green coloured crystals, and in crustations. Sulphuret of Zinc. Blende. W. Zinc sulphure. H. This mineral occurs in considerable quantities, at the mines on Perkiomen creek, of the yellow, brown, and black varieties, generally massive, but sometimes crystallized. Its fracture has a strong resinite aspect. It is associated with barytes, and the vein is nearly six inches in thickness. Sulphuret of Molybdena. Molybdena. W. Molybdena sulphure. H. The spe summits. Zoizite occurs in the hornblende rocks of the quarry, end of canal road, in acicular crystals and fasiculated, sometimes associated with zeolite, and rutilite. Colour, greyish, and has a slight pearly lustre. Very large quantities of this variety, occur in the priOn Chester creek, three miles from the town of Ches-mitive formation of our vicinity, more particularly so in ter, and about seventeen south of the city, this metal the mica slate on the Schuylkill. occurs in considerable quantities, in granite. The best specimens, of the dodecaedron with rhomcimens from this place, exhibit the usual characters of boidal faces, are found on the Wichicon creek, about nine molybdena, being of a light lead grey, and bright metal-miles from the city. The prismatic garnet is also found lic lustre. Its structure is lamellar, and it marks, with near the same place. much softness, upon paper. It is said to occur here The dodecaedron, truncated on all its edges, cccurs crystallized, but I have never witnessed it. Sulphuret on the eastern side of the same creek, on the top of a of iron and phosphat of lime accompany it. hill, about half a mile above its confluence with the Red Oxide of Titanium. Rutile. W. Titane Oxide. H. Schuylkill. A very fine large specimen, now in possession of Mr. S. Morton, measuring about five inches in In the granular limestone of London grove, Chester diameter, was found in digging a well at Barrenhill meet county, particularly on the property of Mr. John Jack-ing house, twelve miles from the city. son, this mineral occurs crystallized in prisms, geniculated, in angular and broken pieces, and rolled. Colour, generally that of blood red to brown. Silico calcareous Oxide of Titanium. Rutilite. W. Titane siliceo calcaire. H. Mr. Vanuxem and myself, about eighteen months since, discovered this species, imbedded in the hornblende rocks of the quarry at the end of the canal road. Some specimens are finely crystallized in very low octaedrons, nearly an inch over, with the obtuse angles truncated. Colour, a dull waxy yellow. Mr. S. Conrad had some years previous, observed it in small quantities, at the falls of Schuylkill. EARTHY MINERALS. Zircon. Zirkon. W. Zircon. H. This mineral exists in several places of our neighborhood. It was first discovered at the falls of the Delaware at Trenton, about twenty yards above the eastern abutment of the bridge, in gneiss, by Mr. S. Conrad. Crystals, generally small four-sided prisms, of a dark brownish red, imbedded in pale blue quartz, and greenish feldspar. Another locality of this mineral was discovered by Mr. Vanuxem and myself, about two years since, on the Brandywine, eastern side, about two miles beyond Westchester, on the opposite side of the creek from James Jefferis's farm. It is there found in pieces of blue quartz in the road. Mr. Lukens has also found it lately, about fifteen miles on the York road. Within a few weeks, Mr. A. E. Jessup has found it to occur on The trapezoidal garnet, with twenty-four faces, occurs remarkably perfect, of a very deep red colour, in the mica shist, about one and a half miles above the falls of Schuylkill, where the lock is now forming. Some of those taken to Paris by Mr. Vanuxem, are highly prized by Hauy, as beautifully illustrating the theory of decrements. Manganesian Garnet. Grenat Manganesie. Brogt. This mineral has lately been discovered by Mr. Jessup, one fourth of a mile west of the Ridge Road, and about nine miles from the city. Colour, brownish red. It has only been discovered massive. Staurotide. Staurolith. W. Staurotide. H. On the Wichicon, about eight miles from the city, a large, steep, and uncultivated hill, formed by almost perpendicular gneiss rocks on its eastern side, contains a large quantity of this mineral, in single crystals of a dark reddish brown colour, and resinite appearance. Form a hexagonal prism, terminated by diedral summits. It is associated here with dodecaedral garnets and small quantities of cyanite. It was first observed here by Mr. Godon. Beryl. Edler Beril. W. This mineral is found on Mr. C. Peale's farm, near Germantown. Colour, yellowish green. I have lately found some specimens of it, in a quarry of gneiss belonging to judge Peters, about three hundred yards above the upper bridge, on the west side of Schuylkill. Colour of one part, yellowish, of another, green, and puts on more the appearance of emerald. Tourmalin. Schorl. W. Tourmalin. H. In most of the granite and gneiss rocks of our neigh bourhood, we find tourmalin, generally crystallized in long prisms, singly and in bunches, sometimes, but rarely, terminated with three or more faces, and always black. More particularly we find it, at judge Peters' quarry, and Sheridan's quarry, near the upper bridge, as well as on the opposite side of the Schuylkill. The finest specimens have been found eight miles on West Chester road. The brown tourmalin, has been found at London grove in carbonate of lime. Quartz. Berg Kristal. W. This mineral exists in large quantities, and in different forms around us. Amethyst quartz, of a beautiful violet blue, and gradation to a light blossom colour, is found occasionally in Chester and Delaware counties. Blue quartz, amorphous, is found on the Brandywine, two miles west of Westchester, and contains zircon. Smoky quartz, is found finely crystallized, on the Brandywine, in Chester county. Limpid quartz, occurs in large quantities, crystallized, generally aggregated, showing only their pyramids, at Perkiomen and Norristown. Quartz arenaceous, we have in large quantities on the shores of our rivers, and in the sand and gravel hills west of the city. Jasper. Quartz Jaspe rouge. H. Jasper of various colours and fine texture, is found in th angular and broken pieces, on the shores of the Dela- & ware and Schuylkill, some of which have chalcedonic veins through them. It occurs in place of a rough yel low colour, about one mile on this side of Springmills, immediately in the road, in considerable blocks, and f contains a sinall portion of chalcedony and drusy quartz, a Feldspar. Feldspath. H. W. The granite and gneiss rocks of our neighbourhood are, in a great measure, composed of this mineral. A few fine specimens, well crystallized, were found by Mr. Vanuxem and myself, at judge Peters's quarry, about one quarter of a mile above the upper bridge, in ten-sided prisms, with diedral suminits, and one speci men hemitrope. About a mile up the canal road, on the eastern side, is found a beautiful white variety, asso ciated with crystallized mica and phosphate of lime. Adularia, This variety of Feldspar, occurs in the hornblende rocks, of the quarry, end of canal road. Some specimens are distinctly crystallized. Desintegrated Feldspar. Kaolin. Feldspar in a state of decomposition exists on the canal road, and on Mill creek, near the Baltimore turnpike, and in large quantities about three miles west of Chester, near the creek. Clay. Hornstone. Hornstein. W. Quartz agathe grossier. H. Nature has abundantly supplied us with this substance, This mineral occurs in the gravel hills near the Schuylso useful to the manufacturers of porcelain. The nukill, in small pieces and of a fine texture. On the Easton road, about ten miles and a half from the city, itmerous kilns for the burning of bricks, sufficiently point out the situation where it is most plentiful. A more occurs in large quantities, in place, of a greyish white colour, massive and of a dull splintery fracture. On pure variety of clay, is found on the Delaware below the road to Springmills, about two hundred yards be- tities are taken in wagons to Pittsburg, a distance of Bordentown, and thence to New Castle. Large quanyond Barrenhill meeting house, immediately at the cross roads, is found a rock much resembling coarse horn- more than three hundred miles, used by glass blowers, stone. Where it has been exposed to the atmosphere, for making pots. Variegated clay is also found near Bordentown. it separates generally into four-sided prisms, with two acute and two obtuse angles, of an inch or two in diameter and five or six long, the ends are broken at right angles with the prism. Flint. Quartz agathe pyromaque. H. Fuerstein. W. We find this mineral only in rolled pieces in this vicinity. It exists in the gravel hills near the Schuylkill, and is also found on the shores of the Delaware, of a black colour, containing the remains of a small zoophyte of a globose appearance. Found near the Delaware above Bristol, enclosing terebratula. Chalcedony. Quartz agathe chatoyant. H. Kalzedon. W. Many beautiful specimens of chalcedony, were found by Mr. Vanuxem and myself, on the Westchester road, between the sixteenth and seventeenth milestones. It is associated with quartz in decomposed serpentine. Colour, bluish milky white, covered with rich, yellow, drusy, quartz crystals. It sometimes contains arborizations, of a hair brown colour, supposed to be confervæ. Mr. Conrad has also found it between Springfield and Concord. Basanite. Lydian Stone. W. This variety of silicious slate, is found in rolled pieces at the falls of the Delaware at Trenton, of a dark blueish black colour. It evidently has been brought by the water, from the grawacke and transition limestone formation, in the neighbourhood of Easton, about fifty miles above. Argillite. Argile schisteuse tabulaire. H. Clay slate occurs on the Norristown road, about sixteen miles from the city, of a blucish grey colour. It does not appear to be sufficiently perfect there, to be made use of. Zeolite. Zeolith. W. Stilbite. H. In the hornblende quarry, at the end of the canal road, about four miles from the city, this mineral occurs radiated and incrusting the rocks, of a white colour. It is also found there in crystals, though not very perfect. Mica. Glimmer. W. formation of our neighbourhood. We find it in hexae. This occurs exceedingly abundant in the primitive dral prisms and tabulated, on the Schuylkill, near Germantown, and on the Wilmington road near the Woodlands, where I have found hexaedral crystals of black mica, circumscribed by those of a light brown, forming curious specimens. The largest plates I have seen, of this vicinity; were found by Mr. Vanuxem and myself about fifty yards east of the canal road, just beyond the house of Mr. Caspar Morris. The plates are six inches over; and the hexagonal form of crystallization is beau tifully illustrated by the arrangement of lines, of a dark metallic colouring matter, either iron or manganese. Green mica is found at Chestnuthill, near the Wichicon, where it is probably coloured by chrome; also near Chester, Mica very largely enters into the composition of our granite, gneiss, and mica slate rocks. Chlorite. Talc Chlorite. H. Chlorit. W. Chlorite of a dark green colour, and in fine particles, is found with quartz at Willowgrove; and laminated, near the soapstone quarry on the east side of Schuylkill. Dr. Seybert says, near the Warwick iron works in Chester county, and in Montgomery county near the Schuylkill, but I regard the latter rather as a talc rock. Hornblende. Gemeiner Hornblend. W. Amphibole. H. Large masses of hornblende rock exist on the Schuylkill, about two hundred yards above the engine house; and about two miles again above that. It is pretty well crystallized, in a bladed and acicular form, on the canal road. Lithomarge. Steinmark. W. Argile Lithomarge. H. Cleveland says, that this mineral occurs in Montgomery county, but does not particularize the spot. Steatite. Speckstein. W. Talc Steatite. H. Steatite is found in considerable quantities, about ten miles up the Schuylkill, where, with the connection of 1 ---མ |