Mathilde L. Koch 



271 



TABLE II. 



Relative proportions of the proximate constituents of the brain of the fetal pig 



at different ages. 



In relative proportions of solids. 



* Mendel, L.: Amer. Journ. of Physiol., xxi, p. 103, 1908. 



t By difference. 



(?) Indicates doubtful result. 



THE JOURNAL OF BIOLOGICAL CHEMISTRY, VOL. XIV, NO. 3. 



