. The biology of the Protozoa. Protozoa; Protozoa. 15 14 -----i/li*-. '^m 16. 18 19 -4^^'- .^sirL: 20 Fig. 227.—Oxytricha fallax; conjugation and meiosis. 2 to 9, formation and divis- ion of the first meiotic nuclear spindle and separation of the twenty-four dumb-bells into two groups of twelve dumb-bells each; 10 to 12, the second meiotic division; 13 to 15, the third division; 16, one of the pronuclei; 17 to 20, the first zygotic division. (After Gregory.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration
. The biology of the Protozoa. Protozoa; Protozoa. 15 14 -----i/li*-. '^m 16. 18 19 -4^^'- .^sirL: 20 Fig. 227.—Oxytricha fallax; conjugation and meiosis. 2 to 9, formation and divis- ion of the first meiotic nuclear spindle and separation of the twenty-four dumb-bells into two groups of twelve dumb-bells each; 10 to 12, the second meiotic division; 13 to 15, the third division; 16, one of the pronuclei; 17 to 20, the first zygotic division. (After Gregory.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Calkins, Gary N. (Gary Nathan), b. 1869. Philadelphia, New York, Lea & Febiger
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Keywords: ., bookauthorcalkinsgaryngarynatha, bookcentury1900, bookdecade1920
