Mapoteca Geologica Americana: A Catalogue of Geological Maps of America (North and South) 1752-1881, in Geographic and Chronologic Order, Masalah 7U.S. Government Printing Office, 1885 - 184 halaman |
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Halaman 295
... margins gradually expanding and curving from the beak to the center , where the shell has its greatest width , and thence narrowing towards the front , which is broadly rounded . General surface depressed con- vex , becoming more convex ...
... margins gradually expanding and curving from the beak to the center , where the shell has its greatest width , and thence narrowing towards the front , which is broadly rounded . General surface depressed con- vex , becoming more convex ...
Halaman 296
... margin . " Inside , a strong mesial ridge , rounded and of moderate width , runs from the umbo to a point a little beyond the middle of the shell ; at the umbo this ridge bears a small nailhead - like process or swelling , and there are ...
... margin . " Inside , a strong mesial ridge , rounded and of moderate width , runs from the umbo to a point a little beyond the middle of the shell ; at the umbo this ridge bears a small nailhead - like process or swelling , and there are ...
Halaman 297
... margin produced in the plane of the valve . Hinge - area triangular , concave , and marked with fine parallel lines . Umbo elevated above hinge - line about one - fourth of length of shell . Foramen triangular and of moderate size ...
... margin produced in the plane of the valve . Hinge - area triangular , concave , and marked with fine parallel lines . Umbo elevated above hinge - line about one - fourth of length of shell . Foramen triangular and of moderate size ...
Halaman 298
... margins , the cast of the apparently smooth outer surface . The interior ridge and shield - like expansion is of a peculiar character , and unlike that of any described recent or fossil form known to me . It is so well marked that there ...
... margins , the cast of the apparently smooth outer surface . The interior ridge and shield - like expansion is of a peculiar character , and unlike that of any described recent or fossil form known to me . It is so well marked that there ...
Halaman 299
... margin is not to a certainty clearly shown . There is no reference or record number attached to the specimen , and nothing is said of it in Mr. Hartt's notes as published by Mr. Dawson . A scratched outline around the specimen shows ...
... margin is not to a certainty clearly shown . There is no reference or record number attached to the specimen , and nothing is said of it in Mr. Hartt's notes as published by Mr. Dawson . A scratched outline around the specimen shows ...
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Bagian yang populer
Halaman 490 - Pennsylvania, and the said territorial line; provided however, and it is further understood and declared, that the boundaries of these three states shall be subject so far to be altered, that, if congress shall hereafter find it expedient, they shall have authority to form one or two states in that part of the said territory which lies north of an east and west line drawn through the southerly bend or extreme of lake Michigan.
Halaman 578 - Moines; thence, down, and along the middle of the main channel of the said river Des Moines, to the mouth of the same, where it empties into the Mississippi river; thence, due east, to the middle of the main channel of the Mississippi river; thence, down, and following the course of the Mississippi river, in the middle of the main channel thereof, to the place of beginning.
Halaman 572 - Miami aforesaid; and on the north by an east and west line drawn through the southerly extreme of Lake Michigan, running east, after intersecting the due north line aforesaid from the mouth of the Great Miami, until it shall intersect Lake Erie, or the territorial line, and thence with the same, through Lake Erie, to the Pennsylvania line...
Halaman 484 - ... to the point where it strikes the southern boundary of New Mexico; thence, westwardly, along the whole southern boundary of New Mexico (which runs north of the town called Paso) to its western termination; thence, northward, along the western line of New Mexico, until it intersects the first branch of the river Gila; (or if it should not intersect any branch of that river, then to the point on the said line nearest to such branch, and thence in a direct line to the same;) thence down the middle...
Halaman 480 - Majesty shall be continued westward along the said fortyninth parallel of north latitude to the middle of the channel which separates the continent from Vancouver's Island, and thence southerly through the middle of the said chanJO nel, and of Fuca's Straits, to the Pacific Ocean...
Halaman 484 - ... said river, until it empties into the Rio Colorado ; thence across the Rio Colorado, following the division line between Upper and Lower California, to the Pacific Ocean. The southern and western limits of New Mexico, mentioned in this article, are those laid down in the map entitled " Map of the United Mexican States, as organized and defined by various acts of the Congress of said republic, and constructed according to the best authorities. Revised edition. Published at New York in 1847, by...
Halaman 472 - The southern boundary of the United States, which divides their territory from the Spanish colonies of East and West Florida, shall be designated by a line beginning on the River Mississippi, at the northernmost part of the thirty-first degree of latitude north of the equator, which from thence shall be drawn due east to the middle of the River Appalachicola...
Halaman 574 - That the said state shall consist of all the territory included within the following boundaries, to wit: bounded on the east, by the meridian line which forms the western boundary of the state of Ohio...
Halaman 471 - St. Croix River to the highlands; along the said highlands which divide those rivers that empty themselves into the river St. Lawrence, from those which fall into the Atlantic Ocean, to the northwesternmost head of Connecticut River...
Halaman 490 - The middle state shall be bounded by the said direct line, the Wabash from post Vincents to the Ohio ; by the Ohio, by a direct line drawn due north from the mouth of the Great Miami to the said territorial line, and by the said territorial line.