XTI. Ei'FECT OF Raw Tuberculous Milk upon a Guinea Pig 

 This interesting photograph illustrates one of the experiments conducted by Dr. Wood- 

 head for the Royal Commission on the Effects of Food derived from Tuberculous 

 Annuals. Milk was taken from a cow with diseased udder, supplied for the purpose 

 by Professor Bans', ^"*^ used to inoculate a perfectly healthy g-uinea pig-. An intra- 

 peritoneal injection of 1 c.c. of the milk in its raw state caused the death of the 

 guinea pig- in 53 days. Some of the mesenteric and mesocolic glands (a), spleen 

 (b), liver (c), and under surface of the diaphragm ((/), showed well-marked tubercle. 

 The glands behind the manubrium sterni and along the left side of the sternum 

 (e) were also tubercular. Microscopic examination revealed tubercle bacilli. 

 — Kep. of Com., Part III, pp. 195. 225, 2S2. 



