American Journal of Science and Arts, Volume 98Kline Geology Laboratory, Yale University., 1869 |
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Resultados 1-5 de 31
Página 24
... vault , which we have termed pseudobrachial appendages , or false arms . In clearing away the matrix of this specimen , we had cut just far enough to expose the edges of the arms on each side of the deep ambula- cral furrow , so that ...
... vault , which we have termed pseudobrachial appendages , or false arms . In clearing away the matrix of this specimen , we had cut just far enough to expose the edges of the arms on each side of the deep ambula- cral furrow , so that ...
Página 25
... vault , have led us to doubt the existence of a central opening in the vault of this genus , when the specimens have this part entire . The specimen of C. malvaceus shows the remains of the usual narrow lateral proboscis , and also has ...
... vault , have led us to doubt the existence of a central opening in the vault of this genus , when the specimens have this part entire . The specimen of C. malvaceus shows the remains of the usual narrow lateral proboscis , and also has ...
Página 26
... vault pieces mentioned , a comparatively large furrow extends inward from each arm - base to the central open- ing . These we regard as continuations of the ambulacral fur- rows from the arms , though there is also a minute opening at ...
... vault pieces mentioned , a comparatively large furrow extends inward from each arm - base to the central open- ing . These we regard as continuations of the ambulacral fur- rows from the arms , though there is also a minute opening at ...
Página 27
... vault ; though its ambulacraí canals evidently converged from the arm - bases to the middle of the vault , partly above the outer vault pieces , and under those composing the middle of the vault . That these furrows termi- nated at the ...
... vault ; though its ambulacraí canals evidently converged from the arm - bases to the middle of the vault , partly above the outer vault pieces , and under those composing the middle of the vault . That these furrows termi- nated at the ...
Página 30
... vault in the Actino- crinida . In the third and fourth Decades of descriptions and illustrations of the Canadian Organic Remains , Mr. Billings , the able paleontologist of the Geological Survey of the Cana- dian provinces , gives some ...
... vault in the Actino- crinida . In the third and fourth Decades of descriptions and illustrations of the Canadian Organic Remains , Mr. Billings , the able paleontologist of the Geological Survey of the Cana- dian provinces , gives some ...
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Outras edições - Ver tudo
Palavras e frases frequentes
acetic acid action Albertite allantoin alloxan ambulacral ammonium angle appears arsenic acid barium battery beam blue boiling carbonic acid cent chlorate chlorate of potassium chlorhydric acid chlorid chromium chromosphere claspers clay cloud coast color comets containing Cretaceous Crinoids crystals deposits described dissolved drift examined expedition experiments feet formation fossil furrows gave genera genus geological glacier heat hydrogen illuminating power inches iron Journal length light limestone lines liquid mass metallic meteor meteorites mineral minute mixture molecule nearly nitrate nitric acid observed obtained oxalate oxyd paper plates polarization portion potassic potassium precipitate probably produced Prof quantity remarkable rock salt sandstone seen side slender soda solution species specimens Spitzbergen stryphnate substance sugar sulphate sulphocyanid sulphuric acid surface temperature tion toluidine tube uranium uric acid vapor vault Verrill yellow zinc
Passagens conhecidas
Página 270 - Director of the Geological Survey of Ireland, and Professor of Geology in the Royal College of Science, Dublin.
Página 418 - Report on the Filtration of River Waters for the supply of Cities, as practised in Europe, made to the Board of Water Commissioners of the city of St. Louis.
Página 411 - ... back. On the other hand, if a thick darkness enshrouds all beyond, we have no right to assume it to be impossible that we should have reached even the last link of the chain — a stage where...
Página 411 - ... Admitting to the full as highly probable, though not completely demonstrated, the applicability to living beings of the laws which have been ascertained with reference to dead matter, I feel constrained, at the same time, to admit the existence of a mysterious something lying beyond — a something...
Página 72 - For these reasons, we have no hesitation in adopting as our fundamental maxim, the " law of priority," viz. § 1. The name originally given by the founder of a group or the describer of a species should be permanently retained, to the exclusion of all subsequent synonyms (with the exceptions about to be noticed) . Having laid down this principle, we must next inquire into the limitations which are found necessary in carrying it into practice.
Página 268 - Cunninghami to gain a height of 200 feet, and a circumference of 23 feet. " It is not at all likely that, in these isolated inquiries, chance has led to the really highest trees, which the most secluded and the least accessible spots may still conceal. It seems, however, almost beyond dispute, that the trees of Australia rival in length, though evidently not in thickness, even the renowned forestgiants of California...
Página 79 - In Latinizing modern words the rules of classic usage do not apply, and all that we can do is to give to such terms as classical an appearance as we can, consistently with the preservation of their etymology. In the case of European words whose orthography is fixed, it is best to retain the original form, even though it may include letters and combinations unknown in Latin. Such words, for instance, as Woodwardi, Knighti, Bullocki, Eschscholtzi, would be quite unintelligible if they were Latinized...
Página 286 - Moors, divided our globe into two parts, by a line of demarcation passing from pole to pole, one hundred leagues west of the Azores and Cape Verde islands...
Página 411 - But do the laws of chemical affinity," says he, "to which, as I have endeavoured to infer, living beings, whether vegetable or animal, are in absolute subjection, together with those of capillary attraction, of diffusion, and so forth, account for the formation of an organic structure, as distinguished from the elaboration of the chemical substances of which it is composed ? No more, it seems to me, than the laws of motion account for the union of oxygen and hydrogen to form water, though the ponderable...
Página 84 - B. It is recommended that the assemblages of genera, termed families, should be uniformly named by adding the termination, idee, to the name of the earliest known, or most typically characterized genus in them ; and that their subdivisions, termed subfamilies, should be similarly constructed with the termination, ince.