227.

1877-Crosby (W. O.). Geological map of Eastern Massachusetts and of Boston and vicinity. Scale, 1 mile to the inch for Boston and 5 miles to 1 inch for Eastern Massachusetts.

Accompanying "Contributions to the geology of Eastern Massachusetts." Occasional papers of the Boston Society of Natural History, III. Boston, 1880.

These two maps are on the same large sheet. The smaller one (Eastern Massachusetts) occupying the right-hand lower corner.

228.

1877-Hitchcock (C. H.). Geological map of New Hampshire and Vermont.

Accompanying "A topographical atlas of New Hampshire," by Walling. (New York,) 1877.

229.

1877-Hitchcock (C. H.). Geological map illustrating the relation of the New Hampshire formations to those of the adjacent territory. Accompanying "The geology of New Hampshire, Vol. 11, p. 8. Plate I. Concord, 1877.

Black etching.

230.

1878-Hitchcock (C. H.). (No title.) Map of the Ammonoosuc mining district.

Accompanying the "Report on the geology of New Hampshire." Folio atlas. New York, 1878.

On the map itself no name of author, no date, and no place of publication are inscribed.

331.

1878-Hitchcock (C. H.). (No title.) General geological map of New Hampshire, embracing portions of Maine, Vermont, and QuebecScale, 23 miles to the inch.

Accompanying the "Report on the geology of New Hampshire." Folio atlas. New York, 1878.

Six sheets. No title, no date, nor scale are inscribed on the map. The explanation is to be found in Vol. II, p. 672, of "Geology of New Hampshire."

232.

1881-Hawes (G. W.). Map of the Mount Willard region. Scale, 21 miles to 1'inch.

66

Accompanying The Albany granite, New Hampshire, and its contact phenomena," Amer. Journ. Silliman. 3d series, Vol. XXI, p. 22. New Haven, 1881.

Black etching.

VIII.-NEW YORK AND NEW JERSEY.

233.

1822-Barton (D. W.). Barton on the Catskills.

Accompanying "Notice of the geology of the Catskills." Amer. Journ. Silliman. Vol. IV, p. 250. New Haven, 1822.

Black etching and geological indications.

234.

1830-Eaton (Amos). This colour'd map exhibits a general view of the economical geology of New York and part of the adjoining States.

Accompanying "Geological text-book prepared for popular lectures on North American geology with applications to agriculture and the arts." Albany, 1830.

This is the first attempt at a geological map of the State of New York.

235.

1831-Young (J. B.) and Heron (J.). Geological mineralogical map of a part of Orange County, New York. Scale, 2 miles to the inch.

Accompanying "Mineralogy and geology of the counties of Orange (N. Y), and Sussex (N. J.), by Charles U. Shepard. Amer. Journ. Silliman. Vol. XXI, p. 321. New Haven, 1832.

Black etching.

236.

1839-Rogers (H. D.). A geological map of New Jersey. Scale, 6 miles to one inch.

Accompanying "Description of the geology of the State of New Jersey, being a final report." Philadelphia, 1840.

237.

1842-Emmons (E.). Map of the county of Jefferson.

Accompanying "Geology of New York," Part II, comprising the survey of the second geological district. Plate XVI. 40. Albany, 1842.

238.

1842-Emmons (E.). Geological map of Clinton County.

Accompanying "Geology of New York," Part II, comprising the survey of the second geological district. Plate XVII. 4°. Albany, 1842.

239.

1842-New York. Geological map of the State of New York.

Accompanying "Geology of New York," by Emmons, Hall, Mather, and Vanuxem. Four vols. 4°. New York, 1842.

Each volume giving a notice of a geological district comprised in the general map also due to the same four authors.

This map is very important, and marks a second starting point in American geology. It gives a good classification of the American paleozoic rocks due mainly to the researches of Ebenezer Emmons and Vanuxem. But a discrepancy exists between the map and the volumes of explanation which show a want of harmony and a great difference of views between the geologists who had charge of the publication. In the volume Part IV we find in the "Tabular view of the sedimentary rocks of New York," and in the "Plan of arrangement in the State geological collection," the Taconic system, spelled also Taghconick; but no trace of it exists on the geological map. Emmons being the author of the main part of the classification, and being convinced that a system of strata older than the Potsdam sandstone existed, maintained his view in the first volume of the "Agriculture of New York," where he describes "the Taconic system." And in order to show the geographical distribution and position of these rocks, he prepared a geological map of the State of New York (see "Agriculture," part V, p. 361), a reprint, as he says, in the main of the map which accompanies the first reports (i. e., the map published by legislative authority referred to here). Important additions, however, were made to it. Parts of Vermont, Massachusetts, and Connecticut, were included; in addition to this, the Taconic system was marked out and colored and made a distinct part of the map; it occupies a belt extending from the Canadian line to New Jersey and Tappan Bay on the Hudson River below the Highlands. "The three thousand copies of this modified map of the State, showing the extent of the Taconic in New York, were stolen or destroyed by persons unknown, so that they were never issued with the proper volume." (Extract from a letter of E. Emmons to J. Marcou, dated Raleigh, N. C., December 28, 1860.)

240.

1842-Mather (W. W.). Geological map of Long and Staten Islands, with the environs of New York.

Accompanying "Geology of New York." Part I comprising the geology of the first geological district. Plate I. 4°. Albany, 1843.

241.

1843-Cozzens (S.). A geological map of New York or Manhattan Island. Accompanying "A geological history of Manhattan or New York Island." Plate I, p. 10. New York, 1843.

242.

1845-Lyell (Sir Charles). Birds-eye view of the falls of Niagara and adjacent country, coloured geologically.

Accompanying "Travels in North America in the years 1841-42." 2 vols. Frontispiece of Vol. I. London and New York, 1845.

A panoramic geological map of the country between Lake Erie and the towns of Lewiston and Queenstown.

243.

1846 Lyell (Sir Charles). Birds-eye view of the falls of Niagara and adjacent country, coloured geologically.

Accompanying "Reisen in Nord-Amerika von Charles Lyell." German edition. Halle, 1846.

See Lyell (Sir Charles), 1845-No, 242.

244.

1855 Lyell (Sir Charles). Birds-eye view of the falls of Niagara and adjacent country, coloured geologically.

Accompanying "Travels in North America in the years 1841-42." 2 vols. Frontispiece of Vol I. 2d edition. London, 1855.

See Lyell (Sir Charles), 1845-242.

245.

1865-Credner (H.). Geologische Skizze von New York.

Accompanying "Geognostiche Skizze der Umgegend von New York." Zeitsch. Deut. Geol. Gesells. Vol. XVII, Taf. XIII. Berlin, 1865.

246.

1865-Cook (G. H.). Geological map of New Jersey.

Accompanying "Annual report of the geological survey of New Jersey for 1864." Trenton, 1865.

247.

1866-Cook (G. H.) and Smock (J. C.). Geological survey of New Jersey.
Cretaceous formations: including the green-sand marl beds.
Scale, 2 miles to an inch.
Accompanying "Geology of
with a 4to atlas. Map, No. 3.
In two sheets.

New Jersey," by authority of the legislature;
Newark, 1868.

248.

1867-Cook (G. H.) and Smock (J. C.). Geological survey of New Jersey. Map of Oxford furnace iron-ore veins. Scale, 8 inches per mile.

Accompanying "Geology of New Jersey," by authority of the legislature; with a 4to atlas. Map No. 7. Newark, 1868.

249.

1867-Cook (G. H.) and Smock (J. C.). Geological survey of New Jersey. Map of zinc mines, Sussex County. Scale, 8 inches per mile.

Accompanying "Geology of New Jersey," by authority of the legislature; with a 4to atlas. Map No. 8. Newark, 1868.

No explanation of the coloring on the map; there are mineralogical indications on the sections.

250.

1867-Cook (G. H.) and Smock (J. C.). Geological survey of New Jersey. Triassic formation, including the red sandstone and trap rocks of Central New Jersey. Scale, 2 miles to an inch.

Accompanying "Geology of New Jersey," by authority of the legislature; with a 4to atlas. Map No. 2. Newark, 1868.

In two sheets.

251.

1867-Cook (G. H.) and Smock (J. C.). Geological survey of New Jersey. Tertiary and recent formations of Southern New Jersey. Accompanying "Geology of New Jersey," by authority of the legislature; with a 4to atlas. Map No. 4. Newark, 1868.

In two sheets; no scale is given, but it is evidently that of 2 miles to the inch.

252.

1868-Cook (G. H.). No title. (A geological map of New Jersey.) Scale, 20 miles to an inch.

Accompanying "Geology of New Jersey," by authority of the legislature; p. 39 of the introduction. Newark, 1868.

Black etching.

253.

1868—Cook (G. H.) and Smock (J. C.). Geological survey of New Jersey. Azoic and paleozoic formations, including the iron-ore and limestone districts. Scale, 2 miles to an inch.

Accompanying "Geology of New Jersey," by authority of the legislature; with a 4to atlas. Map No. 1. Newark, 1868.

In two sheets.

254.

1870 Credner (H.). Geognostische Skisse von New Jersey nach Rogers, Cook, and Smock.

Accompanying "Die Kreide von New Jersey." Zeitsch. Deut. Geol. Gesells. Vol. XXII, Taf. IV. Berlin, 1870.

Black etching and geological indications.

255.

1880—Cook (G. H.). Lake Passaic (a glacial lake). Scale, 6 miles to the inch.

Accompanying "Annual report of the State geologist for the year 1880.” Trenton, 1880.

256.

1880-Cook (G. H.) and Smock (J. C.). The State of New Jersey. Economic geology. Scale, 6 miles to the inch.

Accompanying "Annual report of the State geologist for the year 1879." Trenton, 1879.