156 BIBLIOGRAPHY 



U. S. Dept. Agr., Animal Food for Ducks. Farmers' Bui. No. 233. (Exp. Sta. 

 Work.) 



Vale, W. W., Profitable Ducks English. 



Weber Bros., How we Make Ducks Pay. Amer. Pekin Duck Co., Boston, Mass. 



How TO SECURE PUBLICATIONS OF THE DEPARTMENT OF 

 AGRICULTURE 



Publications of the Department of Agriculture may be divided into two 

 classes, those of a popular nature and intended for wide circulation, and 

 those of a more technical nature and intended for a more restricted circula- 

 tion. The first class includes Farmers' Bulletins, Circulars of the various 

 Bureaus, and certain other periodical publications, such as the Crop 

 Reporter and the Monthly List of Publications issued by the Department. 

 The second class includes the bulletins of the various bureaus, the annual 

 reports of the bureaus and the Year Book of the Department, besides 

 special publications and reports. 



Any publication, whether of the first or second of these classes, of which 

 a supply is in the hands of the Department is for free distribution. Appli- 

 cation for these publications should be made to the Editor and Chief of the 

 Division of Publications, United States Department of Agriculture. As the 

 editions of many of these publications are necessarily limited, and no funds 

 are available for securing additional copies, the list of those in the hands 

 of the Department is constantly changing. Where the Department's 

 supply is exhausted, application must be made to the Superintendent of 

 Documents, Government Printing Office, who has them for sale at a 

 nominal price. Remittance should be made by Postal Money Order, 

 Express Order or New York Draft. Currency may be sent at owner's risk. 

 Postage stamps, foreign money, uncertified checks, defaced or sleek coin 

 will not be accepted. 



Applications by residents of foreign countries for Farmers' Bulletins 

 should be sent to the Superintendent of Documents, Government Printing 

 Office, Washington, D. C., and should be accompanied by six (6) cents, the 

 price per copy including postage. Applications from foreign countries 

 for other publications must be accompanied by the price of the publication 

 plus the regular rate of postage. No charge is made for postage on docu- 

 ments forwarded to points in the United States, Guam, Hawaii, Philippine 

 Islands, Porto Rico, or to Canada, Cuba or Mexico. 



Senators, Representatives and Delegates in Congress, each have a quota 

 of several thousand copies of Farmers' Bulletins and of certain other publi- 

 cations such as the Year Book of the Department. These publications are 



