BULLETIN 613, U. S. DEPARTMENT OF AGRICULTURE. 27 
Studies on the Digestibility of Some Animal Fats. By C. F. Langworthy and 
A. D. Holmes. Pp. 20. 1917. (Department Bulletin 507.) Price, 5 cents. 
Experiments in the Determination of the Digestibility of Millets. By C. F. 
Langworthy and A. D. Holmes. Pp. 11. 1917. (Department Bulletin 525.) 
Price, 5 cents. 
Digestibility of Dasheen. By C. F. Langworthy and A. D. Holmes. Pp. 12. 
1917. (Department Bulletin 612.) Price, 5 cents. 
Studies on the Digestibility of Some Nut Oils. By A. D. Holmes. Pp. 19. 
1918. (Department Bulletin 630.) Price, 5 cents. 
Experiments on the Digestibility of Fish. By A. D. Holmes. Pp. 15. 1918. 
(Department Bulletin 649.) Price, 5 cents. 
Digestibility of Some Seed Oils. By A. D. Holmes. Pp. 20. 1918. (Depart- 
ment Bulletin 687.) Price, 5 cents. 
Digestibility of Protein Supplied by Soy-Bean and Peanut Press-Cake Flours. 
By Arthur D. Holmes. Pp. 28. 1918. (Department Bulletin 717.) Price, 
5 cents. 
