Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 41 – 42The Society, 1902 |
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Сторінка 20
... determination is supported by the text of Walker's description of the genus Hormisa , which agrees with Epi- zeuxis and absolutely contradicts Litognatha . Litognatha should be restored . ZANCLOGNATHA . 1857. LEDERER , Noct . Eur ...
... determination is supported by the text of Walker's description of the genus Hormisa , which agrees with Epi- zeuxis and absolutely contradicts Litognatha . Litognatha should be restored . ZANCLOGNATHA . 1857. LEDERER , Noct . Eur ...
Сторінка 42
... more extensive work of Kowalevsky on that animal . His principal contribution consists in his determination of the fact that the so - called " segments " of the larva 42 [ April 4 , CONKLIN EMBRYOLOGY OF A BRACHIOPOD .
... more extensive work of Kowalevsky on that animal . His principal contribution consists in his determination of the fact that the so - called " segments " of the larva 42 [ April 4 , CONKLIN EMBRYOLOGY OF A BRACHIOPOD .
Сторінка 44
... determined from the study of whole embryos than by means of serial sections ; and this is especially true where it is possible to use an immersion lens in the study of entire preparations . Further , more points of structure can be ...
... determined from the study of whole embryos than by means of serial sections ; and this is especially true where it is possible to use an immersion lens in the study of entire preparations . Further , more points of structure can be ...
Сторінка 47
... enteron above from the enterocol below ( Figs . 16 , 20 , 42a and 426 ) . So far as I am able to determine this partition wall On is always but one cell thick ( Figs . 40-42 1902. ] 47 CONKLIN EMBRYOLOGY OF A BRACHIOPOD .
... enteron above from the enterocol below ( Figs . 16 , 20 , 42a and 426 ) . So far as I am able to determine this partition wall On is always but one cell thick ( Figs . 40-42 1902. ] 47 CONKLIN EMBRYOLOGY OF A BRACHIOPOD .
Сторінка 50
... determine from Kowalevsky's figures from which portion of the archenteron these lateral partitions arise , but there can be no doubt that they are regarded as folds of the archenteric wall ( see his Fig . 6 ) , nor that they divide the ...
... determine from Kowalevsky's figures from which portion of the archenteron these lateral partitions arise , but there can be no doubt that they are regarded as folds of the archenteric wall ( see his Fig . 6 ) , nor that they divide the ...
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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