ANNOUNCEMENTS 



Future issues of the Biochemical Bulletin 



Pursuant to a change of plan, which is referred to editorially on 

 page 524, the first issue o£ Volume IV of the Biochemical Bulletin 

 will be the January number. Hereafter, each volume of the Biochem- 

 ical Bulletin will coincide, in periodicity, with the calendar years, 

 instead of the academic years as heretofore. The new plan will enable 

 US to issue the quarterly numbers promptly — in January, April, July 

 and October. 



Professional Assistance Offered to Biological Chemists 



The members of the Columbia University Biochemical Association 

 will coöperate confidentially with any one who desires the Services of 

 biological chemists or who seeks a position in biological chemistry. 



Address inquiries to William J. des, 4^7 West ßpth St., New York. 



