. The Protozoa. Protozoa. SPECIAL MORPHOLOGY OF THE PROTOZOAN NUCLEUS 26l The micronuclei of Infusoria were first observed in division by Bal- biani ('58, '59), but were incorrectly interpreted as bundles of sperma- tozoa, an error which Biitschli ('76) was the first to point out. Biitschli showed that these supposed bundles are nothing more than the micronucleus in division, and he correctly interpreted the micro- nucleus as analogous to the nuclei of tissue-cells. In the figures which were made at this time, there is a distinction between chro- matin and achromatin { Paramecium), and a m
. The Protozoa. Protozoa. SPECIAL MORPHOLOGY OF THE PROTOZOAN NUCLEUS 26l The micronuclei of Infusoria were first observed in division by Bal- biani ('58, '59), but were incorrectly interpreted as bundles of sperma- tozoa, an error which Biitschli ('76) was the first to point out. Biitschli showed that these supposed bundles are nothing more than the micronucleus in division, and he correctly interpreted the micro- nucleus as analogous to the nuclei of tissue-cells. In the figures which were made at this time, there is a distinction between chro- matin and achromatin { Paramecium), and a mass of "achro- matic" substance is pictured at each pole (cf. Fig. 138, b). Subsequent r --jCzjH-W. 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. New York, The Macmillan company; London, Mamcillan & co. , ltd.
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Keywords: ., bookauthorcalkinsg, bookcentury1900, bookdecade1900, bookyear1901
