Journ. of Morph., Vol. XTV. FAD): 
Fehr canter aa eine me 
eee 
Fic. 7.— Section through lower part of the body of embryo XXII. Enlarged ro times. 
K., kidney; O./., external oblique; A., origin of the rectus. 
Fic. 8. — Section through the middle of the body of embryo XXII. Enlarged ro times. 8& and 9, 
eighth and ninth ribs; O.#.,-external oblique; 7*%., transversalis; #., rectus. 
Fics. 9 AND 10. — Outline and section of a pig’s embryo 16 mm. long. &., rectus still attached to 
the myotome ; /.47., internal mammary artery. 
Schmidt del. 
