PROPRIETARY FEEDS. 51 



PROPRIETARY STOCK FEEDS. 



Under this heading have been classified those feeds bearing trade 

 names that are not descriptive in any way of the materials used. 

 Like the miscellaneous feeds they may contain any mixture of stock 

 food materials, and can not be compared with standards of average 

 composition. The microscopic examination, however, shows plainly 

 of what constituents these proprietary feeds are made. It will be 

 noted that samples Nos. 1528 and 1700 contain corncob meal, and 

 that several other samples contain considerable quantities of hulls. 

 Samples Nos. 15*75, 1726, and 1942, named sugar and flaxseed, are mis- 

 branded since the analyses and microscopical examination show 

 other substances present than the ones mentioned in the name. 



