W. Riemer 1949 Journal 8 Apr. M.V.Z. 13 Triturus taken in Tilden Regional Parke, Contra Costa Co. and in captivity since 25 Mar. were subjected to injections of hog pituitary anterior lobe extract in following pattern: 7 (♂♂+♀♀) each injected with 1 cc extract suspension. 6 (♂♂+♀♀) each injected with 1 cc Cold-blooded Ringers, as controls. Animals under identical conditions in adjacent aquaria. Suspension compounded as follows: 4 qms dry eXtract ground into suspension and diluted to make 50 cc solution. Each 1 cc injection therefore equal to .08 grams dry extract. Injections made with large needle into peritoneal cavity. Following table indicates dosage data Date shour Amount Exper. Controls Remarks on experimentals 1145 08 Apr. 1 cc Extract C.B.R. 1000 09 " " " 1 experimental escaped 1730 11 " " " " stringy closed discharge 1145 12 " " " " highly swollen ventral surfaces 1500 13 " " " " cloaca on one ♂ one & much swollen 14 " 2 experimental died (See 15 April 1949) 7 great deal of skin shedding by exper- imenals. Some controls developing brown tipped tubercles.