Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 41 – 42The Society, 1902 |
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Сторінка 15
... become type of Apamea through Duponchel in 1829. The similarity of the name led me , however , to mistake Ochsenheimer's species for nicti- tans Bkh . ( given by Lederer as of Linné ) = chrysographa Hübn . ( Cat . Staud . and Rebel , p ...
... become type of Apamea through Duponchel in 1829. The similarity of the name led me , however , to mistake Ochsenheimer's species for nicti- tans Bkh . ( given by Lederer as of Linné ) = chrysographa Hübn . ( Cat . Staud . and Rebel , p ...
Сторінка 47
... become very much shorter and henceforth are cuboid or rounded in shape ; the cells of the outer layer remain ... becomes slightly constricted from that portion lying nearer the blastopore . This constriction is deepest anteriorly , least ...
... become very much shorter and henceforth are cuboid or rounded in shape ; the cells of the outer layer remain ... becomes slightly constricted from that portion lying nearer the blastopore . This constriction is deepest anteriorly , least ...
Сторінка 48
... becomes narrowed from 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 ...
... becomes narrowed from 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 ...
Сторінка 49
... becomes flattened in a dorso - ventral direction and enlarged in its other axes . Associated with the growth of the enterocoel is an important change in the character of its bounding cells ; at first they form a quite regular , cuboid ...
... becomes flattened in a dorso - ventral direction and enlarged in its other axes . Associated with the growth of the enterocoel is an important change in the character of its bounding cells ; at first they form a quite regular , cuboid ...
Сторінка 52
... becomes the chief axis of the larva or adult , as in Sagitta and the echinoderms , and ( 2 ) the hypogastric , in which one of the 66 cross axes " of the egg becomes the chief axis of the larva or adult , as in worms , mollusks and ...
... becomes the chief axis of the larva or adult , as in Sagitta and the echinoderms , and ( 2 ) the hypogastric , in which one of the 66 cross axes " of the egg becomes the chief axis of the larva or adult , as in worms , mollusks and ...
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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