456 



Scientific Proceedings (132) 



alcohol which inhibited peristalsis by direct action on the muscle 

 cell. The same results as with atropin were obtained in this 

 cat. In the case of pilocarpin, the increased absorption is to be 

 explained by more violent peristaltic movement of the intestinal 

 muscles which knead the intestinal contents more vigorously and 

 in that way promote more rapid absorption of the dissolved sub- 

 stances. When a large dose of pilocarpin was injected, for ex- 

 ample, lmgm. or more per kilo, the intestines went into a tonic 

 spasm and this clamping down of the intestinal muscles de- 

 creased absorption to below the normal. Further studies are 

 in progress, especially in regard to the relation of blood circu- 

 lation to absorption from intestines. This communication is in 

 the nature of a preliminary report and it is hoped that further 

 work may be continued on the subject. 



228 (2188) 



Effects of repeated transplantation of whole suprarenals into 



young doves. 



By OSCAR RIDDLE and TADACHIKA MINOURA. 



[From the Carnegie Station for Experimental Evolution, Cold 

 Spring Harbor, New York.] 



In much of the literature on the suparenal glands one or an- 

 other relation of these organs to sex and to reproduction is more 

 or less clearly indicated. In a study of these relationships only 

 slight success has been obtained from efforts to transplant 

 suprarenal tissue. 1,2 The present study was chiefly an attempt 

 to obtain functional grafts of whole suprarenals in young doves 

 and pigeons; or, if persistent transplants were not obtained, to 

 repeat the transplantations at intevals during growth so that 

 some of this tissue would be either functioning or in course of 

 resorption during a considerable part of the period of imma- 

 turity; and then to examine several aspects of sex and of re- 

 production in the treated animals. 



iPoll II., Arch. f. mikr. Andt., 1899, liv, 440. 



2 Schmeiden, F., Zeitschr, f. Chirugie, 1903, lxx, 453. 



