1082 
Journal of Agricultural Research 
Vol. XXXI, No. 11 
(8) Richards, E. H. 
1917. the fixation of nitrogen in faeces. Jour. Agr. Sci. 8: 299-311, 
illus. 
(9) Rosenthal, I. 
1878. TJEBER DIE SPECIFISCHE WARME THIERISCHER GEWEBE. Arch. 
Anat. u. Physiol., Physiol. Abt. 1878: 215-217. 
(10) Trowbridge, P. F., Moulton, G. R., and Haigh, L. D. 
1915. THE MAINTENANCE RECUIREMENT OF CATTLE. Mo. Agr. Exp. Sta. 
Research Bui. 18, 62 p., illus. 
