HEREDITY AND GERMINAL CONTINUITY 3^5 



questions of organic evolution, raised through the puljhcations 

 of Darwin, the ideas of ^slendel attracted very httle attention. 

 The principles that he established were re-discovered in 1900 

 by De Vries and otlier botanists, and thus naturalists were led 

 to look up the work of Mendel. 



Fig. 95. — Gregor Mendel, 1822-1884. 

 Permission of Professor Bateson. 



The great discoverv of ^lendel mav be called that of 

 the purity of the germ-cells. By cross- fertilization of })ure 

 breeds of peas of different colors and shapes he obtained 

 hybrids. The hybrid embodied the characteristics of the 

 crossed peas; one of the characteristics appearing, and tlie 

 other being held in abeyance — present wilhin the organization 



