PROTEINS 167 



These experiments were undertaken and largely carried out by 

 EDGARD ZuNZ.* 1 They lead to a multitude of valuable results. 

 It suffices to mention that by ultrafiltration of thioalbumose, 1 there 

 were shown to be two components of obviously different chemical 

 constitution; and that in hetero- and protoalbumose at least two and 

 in the latter probably even three "proteoses" should be assumed. 



1 Deuteroalbumose A, on account of its high content of easily split-off sul- 

 phur, is termed " Thioalbumose " by PICK. 



