Excerpt from The Journal of Experimental Zoology, 1921, Vol. 33 The following-experiments were carried out at the University of Chicago during the years 1917 to

Excerpt from The Journal of Experimental Zoology, 1921, Vol. 33 The study of the free-martin by F. R. Lilhe ('17 b) has thrown new light on the field of the bio

Excerpt from The Journal of Experimental Zoology, Vol. 32: January-April, 1921 Rule 2. An inverted bud (dorsoventral) gives rise to a limb of reversed asymmetry

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