Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 41 – 42The Society, 1902 |
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Сторінка 38
... Theory , " by Prof. Ernest W. Brown , F.R.S. , of Haverford , Pa . " On the Spectra of Gases at High Temperature , " by Prof. John Trowbridge , of Cambridge , Mass . EXECUTIVE SESSION , 12.40 P.M. President WISTAR in the Chair . Pending ...
... Theory , " by Prof. Ernest W. Brown , F.R.S. , of Haverford , Pa . " On the Spectra of Gases at High Temperature , " by Prof. John Trowbridge , of Cambridge , Mass . EXECUTIVE SESSION , 12.40 P.M. President WISTAR in the Chair . Pending ...
Сторінка 93
... theory of their individuality in the resting nucleus ( Figs . 28 and 32 ) . ( 4 ) In the structure and mode of origin of the bivalent sper- matocytic chromosomes two main types may be distinguished : ( a ) The component chromosomes lie ...
... theory of their individuality in the resting nucleus ( Figs . 28 and 32 ) . ( 4 ) In the structure and mode of origin of the bivalent sper- matocytic chromosomes two main types may be distinguished : ( a ) The component chromosomes lie ...
Сторінка 105
... theories of Moore , Brauer and Häcker concerning the relation of the synapsis to the last ovogonic division and to the processes of reduction and maturation . " Von ' Reduktion , ' " he says , " ist nicht die geringste Andeutung vorhan ...
... theories of Moore , Brauer and Häcker concerning the relation of the synapsis to the last ovogonic division and to the processes of reduction and maturation . " Von ' Reduktion , ' " he says , " ist nicht die geringste Andeutung vorhan ...
Сторінка 120
... theory as to the origin of the deposits , which , if not furnishing conclusive evidence as to the correctness of his theory , at least make it very clear that the lacustrine theory is alone unable to explain many well- known facts ...
... theory as to the origin of the deposits , which , if not furnishing conclusive evidence as to the correctness of his theory , at least make it very clear that the lacustrine theory is alone unable to explain many well- known facts ...
Сторінка 121
... theory as observed by him for these deposits in northeastern Colorado . It will be the chief purpose of the succeeding pages of this paper to extend these observations into southeastern Wyoming and western Nebraska and South Dakota ...
... theory as observed by him for these deposits in northeastern Colorado . It will be the chief purpose of the succeeding pages of this paper to extend these observations into southeastern Wyoming and western Nebraska and South Dakota ...
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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