NEED FOR REGULATIONS 311 



Chemistry. The analyses published in this bulletin reveal the 

 fact that the compounds used increased the yield of butter. 

 Analyses reported by Dr. Wiley: 



Water Fat Ash (Salt) Casein 



49-55 45-45 *-34 3-36 



31.93 67.30 .15 .63 



In 1900 experiments were carried on by Dr. J. B. Weems 

 and Prof. F. W. Bouska at the Iowa Experiment Station. 

 They tested out a number of compounds for increasing the yield 

 of butter and got the following results: 



Water Fat Ash (Salt) Casein 



41.54 53.04 2.46 2.96 



The second recipe was composed of the following ingredients : 



Alumnae pot. sul 4 ounces 



Gum acacia pure i ounce 



Sacc. lact 2 ounces 2 drachms 



Pure pepsin 5 grains 



Giving butter of the following composition: 



Water Fat Casein Ash (Salt) 



49.64 41.46 5.06 3.84 



In addition to the above, samples of suspicious butter were 

 sent to the Station from a Chicago Commission House, which 

 showed, 



Water Fat Casein Ash 



59.61 21.31 11.72 7.36 



42.76 44-9 2 5-io 7-22 



Need for Regulations. From the above it would seem that 

 there was a necessity for some definite regulations concerning 

 the standard or composition of butter. Possibly the Internal 

 Revenue people, in endeavoring to enforce their ruling of 15.99 

 per cent, have been rather exacting in some cases where prosecu- 

 tions have been made. 



In many cases, where the butter was found to slightly exceed 



