1903.] PUBLIC DOCUMENT — No. 33. 49 



Part I. — Outline or Year's "Work. 



J. B. LINDSEY. 



A. Correspondence. 

 The correspondence of this division was about the same 

 in character and amount as in preceding years. Informa- 

 tion is asked on a great variety of subjects. Some ques- 

 tions can be easily answered by reference to bulletins already 

 published, while others require considerable thought and 

 study. The total number of letters sent out during the 

 year has been 1,950. 



B. Extent of Chemical Work. 



The work in the chemical laboratory has been similar to 

 that of previous years. The large amount of routine work 

 in connection with the examination of water, milk, cream, 

 butter, feed stuffs and miscellaneous substances leaves little 

 time available for strictly chemical investigation. The 

 amount of chemical work may be better understood by not- 

 ing the variety and number of substances recorded below. 



There have been sent in for examination 181 samples of 

 water, 120 of milk, 1,482 of cream, 118 of pure and proc- 

 ess butter, 9 of oleomargarine, 130 of feed stuffs and 9 of 

 miscellaneous substances. In connection with experiments 

 by this and other divisions of the station, there have been 

 analyzed, in whole or in part, 187 samples of milk and 

 cream, 42 of butter fat and 642 of fodders and feed stuffs. 

 There have also been collected, under the provision of the 

 feed law, and tested, either individuall}^ or in composite, 

 320 samples of concentrated feed stuffs. This makes a 

 total of 3,240 substances analyzed during the year, as 



