BY DR. LAUDER BRUNTON. 573 



of the tube employed. The specific rotation of different albuminous 

 bodies for yellow light, as given by Hoppc-Seyler for scrum .albumin, 

 is 56, and for egg albumin - 3.").5. The conversion of scrum 

 albumin into acid albumin by phosphoric or acetic acid increases its 

 specific rotation to 71, and a solution in hydrochloric acid has a 

 rotation of 78. 7. Serum albumin, treated with caustic potash, has 

 a rotation of 86 ; egg albumin, 47 ; and coagulated egg albumin, 

 treated in the same way, 58.8, for yellow light. 



