The American journal of anatomy . ^•^ *»? *%u • Fig. 5 A, first polar spindle in anaphase of division. B, same spindle showingone possible way of pairing the chromosomes. C, first polar spindle in telophaseof division. The peripheral end of each spindle is upward. superimposed upon another, twenty-four distinct pieces of chro-matin may be seen. These bodies vary greatly in size and components oi one pair are scarcely visible on account oftheir minuteness, while the largest ones are of a mass hundreds oftimes as great. Some are spherical, others are oblong or nearlysquare in optic


The American journal of anatomy . ^•^ *»? *%u • Fig. 5 A, first polar spindle in anaphase of division. B, same spindle showingone possible way of pairing the chromosomes. C, first polar spindle in telophaseof division. The peripheral end of each spindle is upward. superimposed upon another, twenty-four distinct pieces of chro-matin may be seen. These bodies vary greatly in size and components oi one pair are scarcely visible on account oftheir minuteness, while the largest ones are of a mass hundreds oftimes as great. Some are spherical, others are oblong or nearlysquare in optical section, and some are pear shaped, but none arefiliform. Those of the last group seem on closer examination tobe double, that is, to be composed of two chromosomes of unequalsize adhering to one another. When this fact is taken intoconsideration in four cases (two pairs) and allowance made inaddition for two pairs the existence of which beneath the others 160 W. H. LONGLEY cannot be definitely denied, the most that can


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1901