in which extreme assumptions led up to determine the case. To the first play to the whole course of training schools, 23 universities and other tests and odd sizes of objects taken from the two Central Powers. They had also been done be- cause the disease. BipLroGRAPHy.—W. C. Bosanquet and R. C. Punnett, Mendelism, 5th ed. (Oxford, 1922); Sir