Misc. Publication 5, U. IS. Dept of Agriculture 



All niamiscripts aro lumdlod editorially in the older of their re- 

 ceipt. The date of receipt is ])rinted at the bottom of the first jia<re 

 of each puldished paper. For dei)artinent papers it is the date they 

 are received in the ollice of the e(|itorial chief of publications, and for 

 station papers it is the date they ai-e received in the olli c of the 

 chairman of the station subconnnitte(>. On .laniiary 1 and July 1 of 

 each year all papers (m hand are renumbered in their previous numer- 

 ical order. 



The key number appearin*; in the lower ri«?ht-hand corner of the 

 first pa<j:e' of each article shows the total numlx'r of papers i.ssued by 

 the department bureau or State experiment station from which the 

 paper emanates. 



DISTRIBUTION 



JOURNAL 



The edition of the Jol-rnal is small and its free distribution is 

 necessarily restricteil. In addition to (lovernment depositories, it is 

 sent free upon re(piest to libraries of universities, airricultuial col- 

 leges, and experiment stations, to larjre technical schools, and other 

 institutions and ajiencies whose work relates directly to a<rricultural 

 research. A small exchannje list is maintained, limited to institutions 

 and publications whose technical papers have a<rricultural interest. 

 As soon as a number of the Joi unal is received from the press each 

 author contributini; to it is sent a copy. With this exception no 

 copies are sent free to individuals. 



Those who desire to subscribe for the Joihxal should make remit- 

 tance to the Superintendent of Documents, (rovernment Printinjr 

 Oflice, Washin^'ton, I). C, who handles all subscription lists. The 

 price is $4 a year for domestic and $5 for forei«;n subscriptions. 

 Sin<rle copies may be purchased for '20 cents (domestic) and 25 cents 

 (forei<rn). These prices may vary somewhat from year to year. The 

 JounxAL is at present published semimonthly, two volumes bein^ 

 issued each year. Each volume theicfore contains 12 numbers and 

 the index. 



SEPARATES 



Each paper in the Journal is reprinted as a sepaiate. Separates 

 are usually available for distribution within a short time after the 

 JoiRNAL containing; the article is issued. One hundred copies of 

 each sej)arate are fuinished to the ()ri<;inatin<r bureau and fifty copies 

 are furnished to the ori^inatin<r expei-iment station. If separates are 

 desired in quantity, they should be ordered at the time of i)ublication, 

 when they may be purchased in i)ulk from the Superintendent of 

 Documents pi-actically at cost. Single copies of separates of articles 

 originating'' either in the dej)artment or at the stations will be sent 

 free to interested persons as loni,' as the available supj)ly lasts. Or- 

 dinaiily after the sei)arates are issued no further rei)rints are made. 

 Mailin<x lists of individuals and institutions interested in the various 

 special lines of a<ri'icultural research are supplied by the bureaus or 

 stations and are nuiintained in order that ellective distribution of the 

 Joi RNAL separates may be made. The number of sejiarates of each 

 article published dejx'nds upon the subject, the mailing lists, and 

 the demand which is indicated at the time of ^'oin<; to jjress. To fill 



