Bulletin of the United States Geological and Geographical Survey of the Territories, Volume 6U.S. Government Printing Office, 1882 - Geological surveys |
From inside the book
Results 1-5 of 100
Page 81
... internal . The crown of the large third tooth is not expanded above the root , but its antero - posterior diameter contracts regularly to the apex . The crowns of the other teeth are wider at the base antero - posteriorly than the root ...
... internal . The crown of the large third tooth is not expanded above the root , but its antero - posterior diameter contracts regularly to the apex . The crowns of the other teeth are wider at the base antero - posteriorly than the root ...
Page 82
... ( internal ) face of the horizontal portion of the clavicle , extending nearly to its anterior border . Its ex- ternal margin thins out in contact with the clavicle . The above structure is peculiar among Reptilia in the widely - expanded ...
... ( internal ) face of the horizontal portion of the clavicle , extending nearly to its anterior border . Its ex- ternal margin thins out in contact with the clavicle . The above structure is peculiar among Reptilia in the widely - expanded ...
Page 88
... internal jugu- lar vein . The lateral terminations of the occipital , the paroccipital pro- cesses , are large ... internally , and externally assist in some degree towards completing the temporal fossæ . These fossæ are deep ...
... internal jugu- lar vein . The lateral terminations of the occipital , the paroccipital pro- cesses , are large ... internally , and externally assist in some degree towards completing the temporal fossæ . These fossæ are deep ...
Page 89
... internal opening of the foramina , already described , at the base of the brain . The petro- sals have the appearance of two white leaves , harder than the surround- ing bone , slightly turned upon themselves , with their stems leading ...
... internal opening of the foramina , already described , at the base of the brain . The petro- sals have the appearance of two white leaves , harder than the surround- ing bone , slightly turned upon themselves , with their stems leading ...
Page 91
... internally it assists in forming the roof of the mouth and floor of the nasal cavities , and otherwise behaves as already described . The lachrymals are extremely spongy in texture , covered by an outside delicate , compact bony casing ...
... internally it assists in forming the roof of the mouth and floor of the nasal cavities , and otherwise behaves as already described . The lachrymals are extremely spongy in texture , covered by an outside delicate , compact bony casing ...
Other editions - View all
Common terms and phrases
abundant American angle anteriorly articulation Atlantic flora Balana Baleine base bird bone border Bosgoed Bull Cachalot California canine Catodon Centrocercus Cetacea Cétacés characters Colorado Colorado Valley concave condyle convex Cope coracoid crest cusp Dauphin Delphinus Depth of ramus Diameters distal dorsal Dugong Eastern elevated external extremity Felida figg foramen foramina fore wings Fort Mojave fossil fuscous genera genus gibbar groove Grote Guen Hind wings Humboldt Mountains humerus Hyperoodon incisor inferior molar inner Lamantin latter Length Linn macrocephalus Manati mandible median middle Miocene Mojave molar Monodon Morr mysticetus nearly Nevada North northern Orca peculiar Philos Physeter Plate portion posterior posteriorly premolar Pyramid Lake region ridge Ridgway River Rocky Mountains sectorial seen shaft shales side Sirenia skull southern species specimens spine superior surface teeth tibia tibiæ Trans transverse true molar tubercle vertebra Whale Width
Popular passages
Page 431 - New-England, wherein you have the setting out of a Ship, with the charges, the Prices of all Necessaries for Furnishing a Planter and his Family at his first coming...
Page 471 - An Essay on the Natural History of Guiana in South America. Containing a description of many curious productions in the animal and vegetable systems of that country, together with an account of the religion, manners, and customs of several tribes of its Indian inhabitants ; interspersed with...
Page 439 - A new voyage round the world. Describing particularly, the isthmus of America, several coasts and islands in the West Indies, the Isles of Cape Verd, the passage by Terra del Fuego, the South Sea coasts of Chili, Peru, and Mexico...
Page 461 - An history of animals, containing descriptions of the birds, beasts, fishes, and insects, of the several parts of the world ; and including accounts of the several classes of animalcules, visible only by the assistance of microscopes.
Page 462 - Shrubs, and other Plants, not hitherto described, or very incorrectly figured by authors. Together with their descriptions in English and French. To which are added observations on the Air, Soil, and Waters, with remarks upon Agriculture, Grain, Pulse, Roots, etc. To the whole is prefixed a new and correct map of the Countries treated of.
Page 482 - Letters from an American Farmer; describing certain provincial situations, manners, and customs, not generally known; and conveying some idea of the late and present interior circumstances of the British Colonies in North America. Written for the information of a friend in England, By J. Hector St. John, a farmer in Pennsylvania.
Page 75 - ... synchronous. The beds in the lower latitudes must be later, and were forming when Greenland probably had very nearly the climate which it has now. Wherefore the high, and not the low, latitudes must be assumed as the birth-place of our present flora;* and the present arctic vegetation is best regarded as a derivative of the temperate. This flora, which when circumpolar was as nearly homogeneous round the high latitudes as the arctic vegetation is now, when slowly translated into lower latitudes,...
Page 69 - Nor in any of the genera common to the two does the Pacific forest equal the Atlantic in species. It has not half as many Maples, nor Ashes, nor Poplars, nor Walnuts, nor Birches, and those it has are of smaller size and...
Page 459 - Relation abrégée d'un voyage fait dans l'intérieur de l'Amérique Méridionale, depuis la côte de la Mer du Sud, jusqu'aux côtes du Brésil et de la Guyane, en descendant la rivière des Amazones.
Page 76 - To what extent displaced, and how far superseded by the vegetation which in our day borders the ice, or by ice itself, it is difficult to form more than general conjectures, so different and conflicting are the views of geologists upon the Glacial period. But upon any, or almost any. of these views it is safe to conclude that temperate vegetation, such as preceded the refrigeration, and has now again succeeded it, was either thrust out of northern Europe and the northern Atlantic States or was reduced...