<div class="description">
<dl><dd>Thesis (PH. D.)--Columbia university, 1914</dd>
<dd>"Books and articles cited": p. 102-105</dd></dl><br>Subjects: Ontogeny; Embryology, Human; Human evolution</div>
<div class="fn value">
Davidson, Percy E. (Percy Erwin), b. 1874</div>
Internet Archive identifier