WILLIAM KEITH BROOKS 445 



years was never completed though the long years of patient work 

 and remarkable pen drawings were largely given the light in many 

 important publications. His work on Salpa as previously related 

 bore upon the problem of Vertebrate origin, but most of his work 

 dealt exclusively with the fundamental problem of animal mor- 

 phology as represented in non- vertebrate groups. Yet he at one 

 time lectured upon anthropology and when visiting Nassau he 

 seized the opportunity to study the remains of the Indians who 

 welcomed Columbus and whose tragic fate deeply impressed him. 

 But with the exception of this monograph upon the "Lucayan 

 Indians" most of his new facts were gathered outside the field of 

 Vertebrate groups. 



His work contains much thought, and he can scarce be called a 

 prolific writer of small papers. It would be difficult to enumerate 

 many more than 150 titles in the thirty years of most active work 

 from 1876-1906. 



But besides these technical papers he had meanwhile contrib- 

 uted many popular articles as well as theories, essays, and reviews. 

 As early as 1877, his Provisional Hypothesis of Pan genesis was a 

 bold and thoughtful attempt to make more acceptable the Pan- 

 genesis of Darwin, and his book Heredity in 1883 elaborated the 

 like view that variations are handed down chiefly through the 

 males. These views modified his conceptions of the place of 

 woman in society and yet it was characteristic of his balance of 

 mind that he wished to submit his theoretic conclusions to the 

 test of experiment and thus to find out how far woman could profit 

 by sharing the higher education of men. 



Some of his most deeply and well-thought-out essays and lec- 

 tures were brought together in book form in his Foundations of 

 Zoology (Macmillan Co., 1899 and 1907), which must ever 

 remain his chief contribution to philosophical thought. The work 

 preeminently expresses his remarkable balance of mind; part of 

 his purpose was "to show to them who think with Berkeley," 

 that "it is a hard thing to suppose, that right deductions from true 

 principles should ever end in consequences which cannot be 

 maintained or made consistent"; that, "in my opinion, there is 



