. The biology of the protozoa. Protozoa; Protozoa. w* iy « * 1 r * â w * 1 . '^SBaffll^ iMf 1 V ⢠1 L w4 . â¢**» Fig. 147.âParamecium caudatum; A, B, C, stages in the first meiotic division during conjugation; A, shortening of the crescent and formation of pole-plate on upper side; D, prophase of second meiotic division. (After Calkins and Cull.) observers have found that the number in all species of Paramecium is much greater than this, running up to more than one hundred. Dehorne (1920), on the other hand, finds no chromosomes at all,. Please note that these images are extracted from scan
. The biology of the protozoa. Protozoa; Protozoa. w* iy « * 1 r * â w * 1 . '^SBaffll^ iMf 1 V ⢠1 L w4 . â¢**» Fig. 147.âParamecium caudatum; A, B, C, stages in the first meiotic division during conjugation; A, shortening of the crescent and formation of pole-plate on upper side; D, prophase of second meiotic division. (After Calkins and Cull.) observers have found that the number in all species of Paramecium is much greater than this, running up to more than one hundred. Dehorne (1920), on the other hand, finds no chromosomes at all,. 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, Lea & Febiger
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