Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 41 – 42The Society, 1902 |
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Сторінка 3
... Obtained from a Search for the Type of Noctua Linn . , and Conclusions as to Types of Hubnerian Noctuid Genera Represented in the North American Fauna . " Prof. J. Dyneley Prince presented a paper entitled " A Modern Delaware Tale ...
... Obtained from a Search for the Type of Noctua Linn . , and Conclusions as to Types of Hubnerian Noctuid Genera Represented in the North American Fauna . " Prof. J. Dyneley Prince presented a paper entitled " A Modern Delaware Tale ...
Сторінка 4
... OBTAINED FROM A SEARCH FOR THE TYPE OF NOCTUA LINN . , AND CONCLUSIONS AS TO TYPES OF HUEBNERIAN NOCTUID GENERA REPRESENTED IN THE NORTH AMERICAN FAUNA . BY A. RADCLIFFE GROTE , A.M. ( Read January 3 , 1902. ) In view of the preparation ...
... OBTAINED FROM A SEARCH FOR THE TYPE OF NOCTUA LINN . , AND CONCLUSIONS AS TO TYPES OF HUEBNERIAN NOCTUID GENERA REPRESENTED IN THE NORTH AMERICAN FAUNA . BY A. RADCLIFFE GROTE , A.M. ( Read January 3 , 1902. ) In view of the preparation ...
Сторінка 81
... obtained only by an examination of numerous testes . Dupli- cates are often obtained and some of the stages occur very infre- quently , probably owing to a greater rapidity of development at certain periods . This study was begun in the ...
... obtained only by an examination of numerous testes . Dupli- cates are often obtained and some of the stages occur very infre- quently , probably owing to a greater rapidity of development at certain periods . This study was begun in the ...
Сторінка 84
... obtained of follicles filled apically with the spindles of the last spermatogonic division . Such a condition , however , I have never found , although I have examined a large number of testes at different seasons of the year . The ...
... obtained of follicles filled apically with the spindles of the last spermatogonic division . Such a condition , however , I have never found , although I have examined a large number of testes at different seasons of the year . The ...
Сторінка 90
... obtained at different levels seems to leave but two alterna- tives : either the long bundle of cytoplasmic fibres stops abruptly before the anterior end of the colony is reached , or the connection is of so tenuous a character as to ...
... obtained at different levels seems to leave but two alterna- tives : either the long bundle of cytoplasmic fibres stops abruptly before the anterior end of the colony is reached , or the connection is of so tenuous a character as to ...
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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