SMOOTH MUSCLES. 603 



difference in the proportion K : Na in the smooth and striated muscles. 

 According to SAIKI 1 magnesium does not occur to a greater extent 

 than calcium in the smooth muscles of the stomach or the bladder of 

 pigs. The same investigator found 801-811 p. m. water and 199-189 

 p. m. solids in these muscles. 



HENZE found abundance of taurine in the muscles of Octopods, 5 p. m., but 

 no creatine, which, according to FREMY and VALENCIENNES, 2 occurs in the muscles 

 of Cephalopods. He also found no glycogen and no paralactic acid, but, on the 

 contrary, small amounts of fermentation lactic acid. The muscles of Octopods 

 are richer in mineral bodies than the muscles of vertebrates, and are nearly twice 

 as rich in sulphur as these. 



1 Journ. of Biol. Chem., 4. 



2 Henze, ibid., 43; Fre"my and Valenciennes, cited from Kuhne's Lehrbuch, p. 333. 



