Fic. 1.—Alveoli of the udder in cross-section, showing: (A) fat-droplets in the epithelial 
cells, (B) division of the nucleus, (C) a leucocyte in an epithelial cell, (D) epithelial cell with 
protoplasmic projection, alveolar content with (Z) cells and (F) tree fat, and (G) interalve- 
olar connective tissue. (From Chemie und Physiologie der Milch, by Dr. W. Grimmer.) 
_ Fro, 2.—Cross-section of an alveolus of the udder at the time of parturition. (A) 
epithelium, (B) basket cells, (C) leucocytes, (D) nuclei of connective-tissue cells, (#) blood 
capillary. (From Chemie und Physiologie der Milch, by Dr. W. Grimmer.) 
