Contributions from the Biological Laboratories in Princeton University, Volume 3
Princeton University Press, 1912
Consists of reprints of articles from various journals.
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Contributions from the Biological Laboratories in Princeton University, Volume 4
Visualização completa - 1914
9 hrs abnormal amphiaster animal pole appear Arch archiplasm areas asters astral axis blastomeres capsules caused cell division cent centrosomes changes chromatic chromatin chromosomes cleavage furrow Conklin connection contain Crepidula cytasters cytoplasm daughter nuclei dexiotropic diluted sea water direction distinct divided EFFECTS entirely equal evidence experiments formation formed given giving rise granules increased indicated irregular isolated karyomeres larger later lobes mass membrane meres mitosis mitotic figures NaCl nearly normal eggs normal sea water nuclear nuclear vesicle nuclei placed plane plasma plate polar bodies polyasters position present Pressed pressure probably produced protoplasm quadrant remain represent resting result scattered sea water second cleavage separated set of micromeres Shaken shown side Similar to preceding sperm nucleus spheres spindle spindle fibers stage stopped subjected substance suppressed surface tension temperature tension third cleavage typical usual yolk cleavage
Página 578 - Gen., t. 8. FOOT, K., AND STROBELL, E. 1911 Amitosis in the ovary of Protenor belfragei and a study of the chromatin nucleolus. Arch. f. Zellforsch., Bd.
Página 580 - 96 — The Production of Artificial Astrospheres. Ibid., iii. '99 — The Action of Salt Solutions on the Unfertilized and Fertilized Eggs of Arbacia. Ibid., viii, 3. 'oo — Further Studies in the Action of Salt Solutions and other Agents on the Eggs of Arbacia. Ibid., x, 2, 3.
Página 578 - Ueber den Befruchtungs- und Theilungsvorgang des thierischen Eies unter dem Einfluss ausserer Agentien.
Página 519 - ... the solution between the plates of a battery with closed external circuit, though the gradient in the cell is much steeper. I do not propose to elaborate the above theory further at present. The foregoing analysis, whatever its defects in detail, indicates, I believe, that by taking account of the changes of potential resulting from alterations in the permeability of electrically polarized membranes, certain characteristic phenomena of mitosis are susceptible of consistent physico-chemical explanation.
Página 580 - Mead, AD 1898. The origin and behavior of the centrosomes in the annelid egg.
Página 547 - ... the egg develop, thus showing that the activating influence of the spermatozoon has affected both halves. Since in this case the centrosome is the only structure derived from the spermatozoon which is known to go into both cleavage cells he reached his well known conclusion that the essential thing in fertilization is the addition of a centrosome to the egg cell. It is possible of course that other unrecognized structures are introduced by the spermatozoon and serve to activate the egg. Meves...
Página 577 - Cell-Lineage of the Ascidian Egg. Journ. Acad. Nat. Sci., Phila., XIII, 1905. Mosaic Development...