Proceedings of the American Academy of Arts and Sciences, 20권American Academy of Arts and Sciences., 1885 |
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13 페이지
... fossil Arachnida in the older rocks had been exceedingly few , and the first and only at- tempt to show their relations to each other and to living forms was made in a recent paper by Karsch , * occasioned by his description of a new ...
... fossil Arachnida in the older rocks had been exceedingly few , and the first and only at- tempt to show their relations to each other and to living forms was made in a recent paper by Karsch , * occasioned by his description of a new ...
20 페이지
... fossil is one of the most interesting in this field in recent years , as it is the first of the Pedipalpi yet found in paleozoic rocks , or perhaps in any deposits , and it differs from modern types no more than do the carboniferous ...
... fossil is one of the most interesting in this field in recent years , as it is the first of the Pedipalpi yet found in paleozoic rocks , or perhaps in any deposits , and it differs from modern types no more than do the carboniferous ...
171 페이지
... fossil will hardly be doubted by those who will examine the entire series here discussed . Two species are referred here : - 1. Wing scarcely more than twice as long as the greatest breadth ; branches of the anal vein widely and rather ...
... fossil will hardly be doubted by those who will examine the entire series here discussed . Two species are referred here : - 1. Wing scarcely more than twice as long as the greatest breadth ; branches of the anal vein widely and rather ...
174 페이지
... fossils the same order of succession as that which is established in the paleozoic regions of Europe . " The publication of this memoir will not cause all opposition to the " Taconic System " to cease . When we remember the favorite ...
... fossils the same order of succession as that which is established in the paleozoic regions of Europe . " The publication of this memoir will not cause all opposition to the " Taconic System " to cease . When we remember the favorite ...
176 페이지
... fossils " ; and " appear to be equivalent to the Lower Cambrian of Prof. Sedgwick . " In the following passage Dr. Emmons gives the exact time from which dates the Taconic system : " When , in 1836 , I determined that in New York the ...
... fossils " ; and " appear to be equivalent to the Lower Cambrian of Prof. Sedgwick . " In the following passage Dr. Emmons gives the exact time from which dates the Taconic system : " When , in 1836 , I determined that in New York the ...
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Abdomen abdominal appendages Acad acetic acetic acid acid acute Antennæ anthracene appears areola Astacus Barrande base Bentham blastodisc blastomeres border Boston bracts branches broad California calyx Cambarus Cambridge carapace cells Cephalothorax cervical groove chela ciliate cleavage cleavage-plane collected corolla difference of potential Dikelocephalus dorsal Emmons entoderm Eritrichium faune feet flowers foliis fossils fruit genera genus glabrous Graptolites Gray gynobasi Hagen inches long lateral leaflets leaves length less limestone lines long lobes longis Magn male margin maxillipeds median Mountains nearly nuclei Nuculæ nutlets oblong observations Olenus ovum pair of legs papillæ Paradoxides pedicels periblast petioles plate Point Lévis posterior Potsdam precipitate Primordial fauna Proc pubescent punctate ring River rostrum sæpius sandstone schists second fauna segment sepals short side Silurian slates slender somites species specimens spermogonia spines stars superficial tension surface Taconic system telson third tion Trilobites tube upper ventral