24 Maine Agricultural Experiment Station. 1919. 



to guaranty and none were below is to indicate that a feeder 

 ma}' buy that brand with pretty fair assurance that he will get 

 what is guaranteed. To show that those two samples both 

 happened to be 2 per cent or so higher than their guarantees 

 frequently tends to mislead him. For the fact that two sam- 

 ples both ran high, is no indication that the goods of that brand 

 which he buys from a different lot will do equally well. No 

 matter how high some single sample may test, the only analysis 

 that a buyer has any right or reason to expect from a feed is 

 that guaranteed by the maker on the label. 



It should be constantly borne in mind that the guarantees 

 required by the law are not average ,but in the case of protein 

 and fat, minimum, and in the case of fiber maximum percent- 

 ages. That is, if some lots are deficient, the fact that other lots 

 exceed their guarantees does not neutralize it ; it is the intent 

 of the law that guarantees be so fixed that all goods of that 

 brand will be in accord with them. Buyers should not allow 

 themselves to be deceived by the practice of some manufactur- 

 ers who use two figures in their guarantees, making their 

 claims in such forms as "Protein 10 to 13 per cent." The 

 higher figure is absolutely without meaning ; the only percentage 

 guaranteed is that represented by the lower figure. In other 

 words, goods bearing the statement above are no more likely 

 to carry 13 per cent protein that those with a simple statement 

 of "Protein 10 per cent." 



DESCRIPTION OF TABLES. 



In the left hand column of the tables will be found listed 

 the name of each brand of feeding stuff registered in Maine 

 in 1918 or 1919, the name of the manufacturer, the list of in- 

 gredients, and the guaranteed analysis as given on the certifi- 

 cate of registration filed with the Commissioner of Agriculture. 

 Unregistered brands of which samples have been examined are 

 also included in the list. Unless otherwise stated all of the 

 brands, samples of which are here reported, were registered in 

 1919. The feeds are grouped into classes and in those classes 

 the names of the manufacturers are arranged alphabetically. 

 In the right hand column the results of the examination of the 

 samples of each brand are discussed. The number of samples 

 examined, how many were in accord with guaranty, how many 



