THE BIOCHEMICAL BULLETIN 



The BiociiEMiCAL Bulletin is a quarterly biochemical review. 

 It publishes results of original investigations in chemical biology 

 and presents miscellaneous items of personal and professional in- 

 terest to biological chemists. 



Biological chemists everywhere are cordially invited to forward 

 contributions of any character whatever that will increase the value 

 and add to the interest of the Bulletin. Original contributions 

 to research, preliminary reports of investigations, abstracts of 

 papers, addresses, reviews, descriptions of new methods and appa- 

 ratus, practical suggestions to teachers, biographical notes, histori- 

 cal summaries, bibliographies, quotations, news items, personalia, 

 views on current events in chemical biolog}', etc., are solicited. 



The Bulletin will present as much biochemical siibstance of as 

 great variety and value, in as little space and at as small an annual 

 subscription price, as possible. Contributors are accordingly re- 

 quested to keep their papers within the bounds of 15 printed pages, 

 if possible, and to restrict them to 10 pages or less, if it can be 

 done satisfactorily. Recrystallize the products repeatedly, reject 

 the mother liquors and send the Biochemical Bulletin "prepa- 

 rations of tested purity" ! 



Each volume of the Biochemical Bulletin will contain about 

 600 pages. Copies of Volume I, if ordered before August i, 1912, 

 will be forwarded, postage prepaid, to subscribers in the United 

 States and Canada for $2.75; to subscribers in other countries for 

 $3.00. After August i, 1912, the price of Volume I will he $6.00, 

 and copies mill he sold orüy to subscribers. Single numbers may be 

 purchased f rom a small reserve supply at the following prices : No. 

 i, $1.50; No. 2, $2.50; No. 3, $2.00; No. 4, $1.50. 



The supply of copies of each number of Volume II of the Bio- 

 chemical Bulletin will be closely restricted to the indicated de- 

 sires of subscribers and the estimated needs of future members of 

 the Association. Subscriptions for Volume II are accordingly so- 

 licited at the following rates, payable in advance: 



Before September i, 1912: domestic, $2.75; foreign, $3.00. 



Between September i and December i : $3.00; foreign, $3.25. 



Between Dec. i, 1912, and March i, 1913 : $3.50; foreign, $3.75. 



Between March i and June i, 1913: $4.25; foreign, $4.50. 



After June i, 1913 : $6.00 — to be sold only to subscribers. 



Subscriptions may he renewed without prepayment. 



Publication office : 41 North Queen St., Lancaster, Pa. 



Remittances and manuscripts may be addressed to the 

 Biochemical Bulletin, 437 West 59th St., New York City. 



