MISCELLANEOUS PREPARATIONS. 25 



products is far less numerous than the solid and fluid extracts. 

 These products consist largely, if not entirely, of albumoses and 

 peptones in addition to some insoluble proteid matter. The amount 

 of insoluble and coagulable proteids is relatively small in most of 

 the samples examined and the balance of the nitrogen is distributed 

 between the proteoses, peptones, and meat bases. The relative 

 amount of these nitrogenous bodies present depends on the method 

 of manufacture and extent of the hydration to which they are sub- 

 jected. The net weights, as well as the retail prices of the extracts 

 purchased, are interesting and are given in Tables II, IV and IX. 



Discussion of Results. 



In several of these preparations but a small amount of meat extrac- 

 tives or bases is found. The amount of kreatin and kreatinin is 

 negative in several cases, showing that the products in question 

 were not made by the evaporation of an infusion of meat. The 

 total nitrogen is extremely low in a number of instances, falling to 

 0.42 per cent in sample 16044. The stimulating value of the amido 

 acids and the nutritive value of the higher forms of nitrogen must 

 be exceedingly small in these cases. This same sample (16044) 

 contains 91.69 per cent of water and retails for $1 per bottle of 477 

 grams. Another sample, 15989, retailing for 60 cents a bottle of 

 179 grams, is evidently largely an artificial product and on applying 

 the method for the determination of organic phosphorus the sample 

 did not appear to resemble a beef juice or extract. This sample 

 contains but 2.36 percent total nitrogen, of which only 3.81 percent 

 is in the form of meat bases; kreatinin is lacking, the insoluble resi- 

 due is relatively large, and alcohol is present. 



