Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 41 – 42The Society, 1902 |
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Сторінка 24
... tion thou shalt be terrified , but fear not ; take courage . He comes in the midnight hour when all things are sleeping . " . II . On that same night , after they had eaten , the youth sat on the opposite side of the fire , awaiting the ...
... tion thou shalt be terrified , but fear not ; take courage . He comes in the midnight hour when all things are sleeping . " . II . On that same night , after they had eaten , the youth sat on the opposite side of the fire , awaiting the ...
Сторінка 50
... tion , Fig . 42a ) . The former of these differences is perhaps not so great as would at first thought appear , being principally due to the fact that in Terebratulina the enteron occupies but a small part of the archenteron , and hence ...
... tion , Fig . 42a ) . The former of these differences is perhaps not so great as would at first thought appear , being principally due to the fact that in Terebratulina the enteron occupies but a small part of the archenteron , and hence ...
Сторінка 68
... tion of Actinotrocha . While there are some facts which may be urged in favor of this view there are many which may be used against it . The fact that in both Phoronis and 68 CONKLIN - EMBRYOLOGY OF A BRACHIOPOD . [ April 4 ,
... tion of Actinotrocha . While there are some facts which may be urged in favor of this view there are many which may be used against it . The fact that in both Phoronis and 68 CONKLIN - EMBRYOLOGY OF A BRACHIOPOD . [ April 4 ,
Сторінка 69
... tion takes place by the posterior extremity , has led to Caldwell's view as to the homologies of the body surfaces in the brachiopods . On the other hand the ventral mantle fold of Terebratulina forms directly across the region where ...
... tion takes place by the posterior extremity , has led to Caldwell's view as to the homologies of the body surfaces in the brachiopods . On the other hand the ventral mantle fold of Terebratulina forms directly across the region where ...
Сторінка 71
... tion of the Brachiopoda . Johns Hopkins University , Chesapeake Zoologi- cal Laboratory , Scientific Results of the Session of 1878 . CALDWELL , W. H. ( '82 ) . Preliminary Note on the Structure , Development and Affinities of Phoronis ...
... tion of the Brachiopoda . Johns Hopkins University , Chesapeake Zoologi- cal Laboratory , Scientific Results of the Session of 1878 . CALDWELL , W. H. ( '82 ) . Preliminary Note on the Structure , Development and Affinities of Phoronis ...
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Africa AMER AMERICAN PHILOSOPHICAL SOCIETY animals appear April Asia Australia auta autic beds belong blastopore body brachiopods Cambaroides Cambarus canals cells Central chromosomes cœlom connection contains crude oil Crustacea crystals curves Decapods deposits distillates distribution division domeykite drones eggs enteron Eocene equation evidence existence fact fauna Feb'y fertilization follicle formation forms fossils freshwater genera genus geographer geological Greater Antilles hydrocarbons islands Jan'y Jurassic land larva larvæ later Lower Cretaceous male mantle mass Mesozoic method Mexico Miocene nature Noctua North northern nuclei observed Ocean Oligocene origin parthenogenesis Pennsylvania petroleum Philadelphia PHILOS plate Pliocene polar body posterior Potamobius present probably PROC produced Prof queen region relation represented river sandstones separated shown solution South America southern species spermatocyte spermatogonia spermatozoa stage Terebratulina Tertiary theory tion Upper Cretaceous Zool