Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 28 – 29The Society., 1890 |
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Сторінка 110
... cells . In almost all biological works it is asserted that the germ- cells of multicellular forms are in all respects , at first , morphologically identical with the other undifferentiated cells of the parent body . While this statement ...
... cells . In almost all biological works it is asserted that the germ- cells of multicellular forms are in all respects , at first , morphologically identical with the other undifferentiated cells of the parent body . While this statement ...
Сторінка 111
... cells and a single large or female germ - cell , in the majority of higher forms . This frequent , indeed usual , lack of equivalence of the male and female reproductive bodies has been almost entirely ignored by many authors , and has ...
... cells and a single large or female germ - cell , in the majority of higher forms . This frequent , indeed usual , lack of equivalence of the male and female reproductive bodies has been almost entirely ignored by many authors , and has ...
Сторінка 113
... cells by means of conjugation or the act of fertilization , are the facts which prove that , in the vegetable world ... cell - units in the lower ones . In animals , on the other hand , this vigor shows itself most pronounced in the ...
... cells by means of conjugation or the act of fertilization , are the facts which prove that , in the vegetable world ... cell - units in the lower ones . In animals , on the other hand , this vigor shows itself most pronounced in the ...
Сторінка 115
... cells as re- spects their size . From naked oöspores to carpospores is the next step , with microscopic flagellate male elements . Finally , the prothallus ap- pears , first , with both oöspheres and antherozoids ; then the prothalli ...
... cells as re- spects their size . From naked oöspores to carpospores is the next step , with microscopic flagellate male elements . Finally , the prothallus ap- pears , first , with both oöspheres and antherozoids ; then the prothalli ...
Сторінка 117
... cells of the same species , induced by the self - regulative influences exerted by internal physiological conditions ... cells of multicellular forms were func tionless , in that they exercise no physiological function which is essential ...
... cells of the same species , induced by the self - regulative influences exerted by internal physiological conditions ... cells of multicellular forms were func tionless , in that they exercise no physiological function which is essential ...
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Academy AMER American Philosophical Society antelope April 18 April 21 Aymara Beothuk Brinton cadmium Carollia cells chromatin coal Committee copper cytoplasm cytoplasmic field death deposit developed Dravidian electricity Emerson England Etruscan fact Feb'y feet female flagellate FRALEY France Franklin free acid Geological germs Gesellschaft Grams Grapeville growth H₂O Hebrew Henry Phillips Historical Society inch Institute Jan'y John Johnstown karyokinesis Kolarian language Lesley Letters of acknowledgment Library Libyan London Malay male element Mass meeting motion nucleoplasm nucleus OH gas organism ovum parent Paris parthenogenetic Pennsylvania Philadelphia PHILOS physiological pipe polar bodies poles present President PRINTED PROC Prof received Royal Ryder Sandstone Sciences Seiler sexual Shale Société Society was adjourned species spermatogonium spermatozoa Survey tion Tlingit Tsimshian University Verein Washington White Pueblo William words Yellow Pueblo zinc
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Сторінка 205 - The Body of Benjamin Franklin Printer (Like the cover of an old book Its contents torn out And stript of its lettering and gilding) Lies here, food for worms. But the work shall not be lost For it will (as he believed) appear once more In a new and more elegant edition Revised and corrected by The Author.* * The foregoing epitaph was written by Dr.
Сторінка 193 - Pennsylvania, as it discouraged useless expense in foreign superfluities, some thought it had its share of influence in producing that growing plenty of money which was observable for several years after its publication.
Сторінка 231 - ... exchanging the products of different places, and thereby rendering the necessaries, conveniences, and comforts of human life more easy to be obtained, and more general, shall be allowed to pass free and unmolested ; and neither of the contracting powers shall grant or issue any commission to any private armed vessels, empowering them to take or destroy such trading vessels or interrupt such commerce.
Сторінка 88 - York city, offered the following resolutions, which were unanimously adopted : — Resolved, That the thanks of the...
Сторінка 100 - Resolved, That a committee of three be appointed by the President...
Сторінка 192 - Calendar with, proverbial sentences, chiefly such as inculcated industry and frugality, as the means of procuring wealth, and thereby securing virtue ; it being more difficult for a man in want to act always honestly, as, to use here one of those proverbs, it is hard for an empty sack to stand upright.
Сторінка 231 - ... is necessary to be taken from them for the use of such armed force, the same shall be paid for at a reasonable price. And all...
Сторінка 232 - And it is declared that neither the pretence that war dissolves all treaties, nor any other whatever shall be considered as annulling or suspending the solemn covenant contained in this article.
Сторінка 175 - Nomenclature of Diseases be referred to a special committee of five members, to be appointed by the President, who shall examine it and report upon its final disposition at the present meeting of the Association. Resolved. That on the favorable report of such committee, it shall be referred back to the Committee on the Nomenclature of Diseases for the preparation of an index...
Сторінка 135 - This implies that the egg possesses foresight of harm coming to it through falling into a parthenogenetic habit ! And when Weismann proceeds to elaborate his necessary hypothesis of a reduction of ancestral germ-plasmas, and says "this must be so," he seems to forget altogether about the probably self-regulating physiological factors controlling the dimensions of cells and their proportions of chromatin and cytoplasm.