138 Chittenden and Cummins — My om,n of Muscle Tissue. 



A careful study of the preceding results, combined with what has 

 been known concerning the chemical properties of myosin, seems to 

 justify the assumption that myosin, as it occurs throughout the ani- 

 mal kingdom, is a single chemical compound, doubtless formed, as 

 suggested by Halliburton, by the interaction of one or more myosin- 

 ogens and a ferment body. That myosin is a single body, is sup- 

 ported by the observed agreement in chemical composition and the 

 general uniformity in the temperature of coagulation of myosin from 

 various animal sources, and is furthermore to be inferred from the 

 similarity in function of the tissue in which it occurs most abun- 

 dantly. 



