New York Agricultural Experiment Station. 595 



these definitions were forwarded to feed manufacturers during the 

 past year from the State Department of Agriculture. It is hoped 

 that in future manufacturers will be able to avoid such inaccuracy 

 in the use of terms as has marked many guarantees of ingredients 

 in samples analyzed during the past season. 



In Table I are shown the number of brands sampled and analyzed 

 during the season of 1912-13, and the number of brands falling con- 

 siderably below guarantee. 



CORN STARCH BY-PRODUCT WITH (OR WITHOUT) CORN BRAN. 



The commodities formerly known as " Gluten Feeds " or " Gluten 

 Meals " have been treated in this bulletin under the names " Corn 

 Starch By-product with (or without) Corn Bran," these names 

 having been adopted by the Association of Feed Control Officials. 

 The definitions of these terms are given on page 349. 



Investigators of the vegetable proteins and authorities on this 

 subject agree that the so-called " gluten feeds " and " gluten meals " 

 contain little, if any, true gluten. It was largely owing to such a 

 condition that the Association found it undesirable to attempt to 

 define a term which was not truly descriptive of the product to 

 which it was applied and, further, which had little if any relation 

 thereto. The names " Corn Starch By-product with (or without) 

 Corn Bran," were accordingly adopted for these misnomers. 



In this bulletin wherever these terms are used, they should be 

 clearly understood as covering the products formerly known as 

 " Gluten Feeds " or " Gluten Meals." 



SCREENINGS IN WHEAT OFFALS. 



Complaints have been received at this Station that certain samples 

 of wheat bran and wheat middlings have been found to be adulterated 

 with screenings. Several samples of these materials were obtained 

 by the agents of the Department of Agriculture and forwarded to 

 the laboratories of the Experiment Station for examination. For 

 the most part these products were found to be pure and unadulterated 

 or at worst, to contain only traces of foreign matter, but the prac- 

 tice of utilizing screenings from wheat by adding them to the bran 

 has become too prevalent to be disregarded. In some cases the 

 quantities of screenings found amount to from 40 to 120 pounds to 

 the ton. Moreover, many whole seeds are often present and a large 

 percentage of them are unaffected by the digestive processes of the 

 animal. Many of them will germinate upon reaching the soil, thereby 

 scattering obnoxious weeds about the farm. 



In the following table are shown the approximate percentage of 

 screenings found in a few samples of wheat bran. 



