RECORDS OF MEETINGS 275 



George G. Scott, A Physiological Study of the Changes in Mus- 



telus canis produced by ^Iodificatioxs ix the 

 Molecular Coxcextratiox of the Experi- 

 mental ^Iedium. 



Summary of Papers 



Dr. Packard 's paper is to be published in the Journal of Experimental 

 Zoology. 



In his first paper, Dr. Scott summarized his own and other investiga- 

 tions on osmotic pressure of the tissues in aquatic animals. In marine 

 invertebrates, he said, the internal osmotic pressure varied with that of 

 the external medium; in the higher fishes, it was more stable, responses 

 to changes in the medium being limited in range; in the lower fishes 

 (sharks), intermediate conditions were observed. 



Discussion of Dr. Scott^s communication brought out the principle that 

 osmotic phenomena had played an important role in evolution, especially 

 of the respiratory organs, circulatory system and skin of vertebrates. 



Dr. Scott's second paper has been published as pages 1-75 of this 

 volume. 



The Section then adjourned. 



William K. Gregory, 



Secretary. 



SECTIOX OF AXTHROPOLOGY AXD PSYCHOLOGY 



29 March, 1913 



Section was called to order at 8 :15 p. m., General James Grant Wilson 

 presiding. 



The following programme was offered : 



Herbert J. Spinden, Characteristics of Tewa Mythology. 

 Nels C. Nelson, The Galisteo Pueblos. 



Alanson Skinner, Xotes ox ^Iexomixi Folklore. 



Summary of Papers 



Dr. Spinden said in abstract : The myths of the Tewa Indians of the 

 Rio Grande region fall into two groups : ( 1 ) cosmogonic and culture 

 hero myths; (2) animal tales, witch stories, etc., of lesser religious sig- 

 nificance. The myths have a truly literary quality with many fine touches 

 of human nature and a clear characterization of many individuals, such 



