No. 5. DEPARTMENT OF AGRICULTURE. 121 



mitted for examination before registrations were accepted. In a 

 number of these cases where the character of the feed did not meet 

 the standards required by the law, registrations were refused. In a 

 number of other cases registrations were returned with requests for 

 corrections, as tJie method of guaranteeing and labeling the brands 

 listed thereon were incorrect. It has not been the custom of the De- 

 partment to analyze chemically and examine microscopically a sam- 

 ple of each brand of Feeding Stuffs, registrations for which are tiled 

 with the Department, however, wherever the method of guaranteeing 

 and tlie list of ingredients given appeared to be misleading or in 

 doubt, samples were requested for examination. As previously stated, 

 in several cases. Chicken Feeds were listed, which, upon examination 

 of samples, were found to contain large quantities of unground weed 

 seeds and accordingly registrations were refused for these brands. 



It has been the custom to make a few check analyses from time 

 to time to compare our work with that being done by other Chemists 

 and the number of such samples examined, together with the sam- 

 ples examined for registrations and those sent in and examined by 

 special request where illness was thought to have occurred, amounted 

 to 104. Of this number there were 21 samples of Cottonseed Meal 

 and 21 samples of Cotton Seed analyzed for the Feeding Stuffs Con- 

 trol Committee, of which the Chief Chemist is a member, in investi- 

 gating the character of the Cotton Seed Meals being offered for sale. 

 A report of the results obtained on these samples were made to the 

 Committee and as a result of the work accomplished by all the mem- 

 bers of this Committee, recommendation was made to continue the 

 study of this problem for another year. It is expected, therefore, 

 that' it will be necessary to analyze about this number of Cotton- 

 seed Meals during the coming season. The investigation of the com- 

 position of Cottonseed Meals is being made in an attempt to deter- 

 mine whether or not it would be advisable to establish a crude fiber 

 standard for this by-product feed. From the results already at 

 hand no conclusion could be drawn as to whether or not there should 

 be such a standard. In order to further investigate this matter the 

 Chief Chemist of the Department visited a number of oil mills in the 

 South for the purpose of obtaining what information could be had 

 as to the amount of Cottonseed Hulls or fibrous material left in 

 the cake after the extraction of oil from the cotton seed. This in- 

 formation, together with the results of the analysis of additional 

 samples of Cottonseed Meals, will be reported to the Committee at 

 the next meeting of the Association of Feeding Stuffs Control Of- 

 ficials. From what has already been observed on this subject, it 

 would seem that in selling Cottonseed Meal there should only be 

 one guarantee for crude protein, instead of the usual sliding guar- 

 antee ranging from 38.(32% to 43.00%, and these guarantees main- 

 tained by the Manufacturers. If this practice were followed out, 

 considerable misunderstanding and controversy would be remedied 

 which might probably make it unnecessary to have two standards, 

 such as a protein standard and a fiber standard for Cottonseed 

 Meal. 



During the year the number of oflficial samples of Linseed Oil 

 obtained by Special Agents of the Department and analyzed was 

 250. The work necessary in analyzing Linseed Oil is an expensive 

 operation and owing to this fadt, and the amount of money avail- 



