FOODS ANIMAL PRODUCTION. 



421 



opiiiiou this is due to the fact that tripe is richer in compounds contain- 

 ing,- chlorin (mucous membrane, etc.) and poorer in phosphates than 

 meat. 



Food preservatives and butter increasers, G. W. Cavanaugh 

 {Xew York Cornell fSta. Bid. lis, pp. 399-104). — Two food preserva- 

 tives, "Preservitas" and "Callerine," and two butter increasers, 

 "Chase's Butter Increaser" and "Gilt Edge Butter Compound" were 

 examined. The "Preservitas" was found to consist of borax and a 

 little salicylic acid and sugar, the "Callerine" of a 7 per cent solution 

 of foriuic aldehyde. The author points out that this substance is sold 

 for a very high price compared with its actual cost, and he believes 

 that the use of formic aldehyde in preserving milk may possibly so 

 alter its composition as to render it less digestible than normal milk. 



"Chase's Butter Increaser" was found to consist of a 25 per cent 

 solution of acetic acid and a small amount of salicylic acid. The "Gilt 

 Edge Butter Compound" consisted of about equal parts of alum and 

 soda with a little pink coloring matter. These articles increase the 

 yield of butter by precipitating the casein in the milk, and a consider- 

 able portion of it will be included in the butter. The author condemns 

 the use of "butter increasers" as fraudulent. 



Salt hays and meado-w or swale hay, J. B. Lindsey et al. 

 {MaamehiDietts Hatch Sta. Rpt. 1895, pp. 240-:246). — Experiments were 

 made with 2 sheep to determine the digestibility of black grass, high- 

 grown salt hay, branch grass, low meadow fox grass, and swale hay. 

 The black grass consisted almost exclusively of June us bulbosus. 



"The low meadow fox grass appeared to consist practically of what is also called 

 rush salt grass (Spartina Jiincea), and both the high-grown salt hay and the branch 

 grass were composed of this as a basis, mixed with more or less coarse grass, prob- 

 ably S2)a)tina atricta var. glabra. The branch grass contained rather more of the 

 coarse material than did the high-grown salt hay. . . . 



"Meadow or swale hay grows in the fresh-water meadows, and is composed of 

 fresh-water grasses, sedges, brakes, and wild ilowers." 



The composition of these hays, with timothy hay for comparison, is 

 given in the following table : 



Analyses of hay. 



Black grass 



High-grown salt liay.. 



Branch grass 



Low meadow fox grass 



Swale hay 



Timothy "hay 



Water. > 



Per cent. 

 15 

 15 

 15 

 15 

 15 

 15 



Crude 

 protein. 



Per cent. 

 8.08 

 6.36 

 7.03 

 6.06 

 6.77 

 6.30 



Crude 

 fat. 



^'fref °i Crude 

 extract, h^^io^e. 



Per cent. 

 2.23 

 2.13 

 1.88 

 2.18 

 1.59 

 2.40 



Per cent. 

 42.00 

 47.14 

 44.84 

 49.22 

 44.97 

 43.60 



Per cent. 

 22.78 

 22.45 

 22.50 

 22.58 

 26.40 

 28.40 



Crude 

 ash. 



Per cent. 

 9.91 

 6.92 

 8.75 

 4.96 

 5.27 

 4.30 



' Assumed. 



