N. H. EXPERIMENT STATION. [Bulletin 200 



CO-OPERATION WITH THE FEDERAL BUREAU OF 



CHEMISTRY. 



The co-operative arrangement begun in 1919 with the Federal 

 Bureau of Chemistry was carried out again the past year. In the 

 cases where inter-state shipments were found to be misbranded or 

 adulterated the findings of the state department were reported to 

 the federal authorities. Nine samples were reported to the Fed- 

 eral Bureau of Chemistry during the past year. This co-operation 

 gives a great deal of additional protection to the feed purchasers of 

 the state. 



SLIDING SCALE OR DOUBLE GUARANTEE 



The law definitely provides that the manufacturer shall state 

 only the minimum percentage of protein, fat and carbohydrates 

 upon the guarantee. The object of this is to prevent the purchaser 

 from being misled by a double guarantee. For example, without 

 this provision in the law, when a guarantee shows 30 per cent to 

 45 per cent protein, an analysis of 30 per cent is all that is neces- 

 sary to meet the guarantee, although the guarantee may lead the 

 purchaser to believe that he may get close to 45 per cent, when as 

 a matter of fact he is more apt to get 30 per cent, or even less. The 

 last year has shown some improvement in this regard. In 1920, 

 out of 340 samples analyzed, 21 or 6 per cent, had a double guar- 

 antee while in 1921 out of 246 samples only 10, or 4 per cent, had 

 a double guarantee. These cases were brought to the attention of 

 the manufacturers and they have promised to comply with the law 

 in the future. 



CLASSIFICATION OF FEEDING-STUFFS ANALYZED 



In classifying these feeding-stuffs we have used the class name 

 under which they have been sold. The following table shows the 

 number of feeds in each class, the average per cent of protein and 

 fat found and the price per 100 lbs. 



