611.013
C280
v.15
Davis, Carl L.
Description of a human embryo having twenty paired somites. With four plates and twenty text-figures.
(In Carnegie institution of Washington. Contributions to embryology. Washington, 1923. 30 x 23. vol xv, p. 1-51. illus. iv pl..
Contributions to embryology, no. 72.
Bibliography: p. 49-50