Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 41 – 42The Society, 1902 |
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Сторінка 24
... side of the fire , awaiting the outcome of that night . " Suddenly there was something overhead and a cer- tain terrible - looking being dropped down by the fire : 0 " " d " Ugh , " said he , " I myself am here ; I eat man ; thou lov ...
... side of the fire , awaiting the outcome of that night . " Suddenly there was something overhead and a cer- tain terrible - looking being dropped down by the fire : 0 " " d " Ugh , " said he , " I myself am here ; I eat man ; thou lov ...
Сторінка 47
... side of the nuclei ( Fig . 37 et seq . Pg ) , while the inner ends of the cells are left free from gran- ules and nuclei and hence are very clear . I suggest that these granules may be associated with the cilia , which in life cover the ...
... side of the nuclei ( Fig . 37 et seq . Pg ) , while the inner ends of the cells are left free from gran- ules and nuclei and hence are very clear . I suggest that these granules may be associated with the cilia , which in life cover the ...
Сторінка 48
... side to side and apparently elongated antero - posteriorly ( Figs . 17-21 ) . The blastopore groove thus formed is shallow posteriorly and deepest at its anterior end where it opens into the enterocol and enteron ( Fig . 17 ) . This ...
... side to side and apparently elongated antero - posteriorly ( Figs . 17-21 ) . The blastopore groove thus formed is shallow posteriorly and deepest at its anterior end where it opens into the enterocol and enteron ( Fig . 17 ) . This ...
Сторінка 51
... side , while the blastopore groove runs backward almost to the posterior end of the embryo . Directly opposite the blastopore is a groove which runs transversely across the dorsal side of the embryo ; this is the dorsal mantle groove ...
... side , while the blastopore groove runs backward almost to the posterior end of the embryo . Directly opposite the blastopore is a groove which runs transversely across the dorsal side of the embryo ; this is the dorsal mantle groove ...
Сторінка 53
... side of the larva as a slight swelling on each side of the midline ( Figs . 25 and 26 ) . These are the halves of the ventral mantle fold and at first they are sepa- rated in the mid - ventral line by the blastopore groove ( Fig . 26 ...
... side of the larva as a slight swelling on each side of the midline ( Figs . 25 and 26 ) . These are the halves of the ventral mantle fold and at first they are sepa- rated in the mid - ventral line by the blastopore groove ( Fig . 26 ...
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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