FOODS ANIMAL PRODUCTION. 281 



{Connedlad State Sta. Rpt. 1899, pt. 2, pp. 139-152). — A large number of preservatives 

 for milk, cream, wine, cider, and beer were examined. 



" [According to the authors, their work] shows that milk and cream preservatives 

 now on the market depend for their antiseptic effects on salt, formaldehyde, borax, 

 and boric acid; and that if the directions given by the manufacturers are followed, 

 a quart of milk will be dosed with from 0.01 to 0.05 gm. of formaldehyde or with 

 0.47 to 3.6 gm. of boric acid. Cream will receive from 0.94 to 5 gm. of boric acid 

 per quart. 



*' Wine and cider preservatives have been found to contain formaldehyde, salicylic 

 acid, boric acid, benzoic acid, and betanaphtol. The cider, treated as directed by 

 the manufacturers of the preservatives, may contain 0.36 to 0.9 gm. of salicylic 

 acid or 0.19 to 0.38 gm. of borax or 0.6 to 0.7 gm. of benzoate of soda per quart. 

 The beer preservatives contain salicylic acid and sulphurous acid in form of sulphites 

 or bisulphites, and beer treated with them may contain from 0.04 to 0.12 gm. of 

 salicylic acid or 0.015 gm. per half-liter glass. Of sulphurous acid, preserved beer 

 may contain 0.015 gm. per half-liter glass." 



Report of tlie chemist (division of foods and feeding), J. B. Lindsey et al. 

 {Massachusetts Hatch Sta. Rpt. 1899, pp. 103-107). — This is a brief general account of 

 the work of the chemical laboratory during the year, which included the examina- 

 tion of samples of water, dairy products, and feeding stuffs. Short notes are also 

 given on feeding experiments and dairy studies, and on digestion experiments which 

 are being conducted at the station. 



Concentrated feed stuffs, J. B. Lindsey et al. {Massachusetts HatcJi Sta. Bui. 64, 

 pp. 31). — A classifitation of concentrated feeding stuffs is suggested, and the analysis 

 reported of a large number of samples of concentrated feeding stuffs, made in com- 

 pliance with the Massachusetts law. The constituents determined were moisture, 

 protein, and fat. The materials analyzed include cotton-seed meals, linseed meals, 

 gluten meals and feeds, wheat middlings, mixed feed, wheat bran and shorts, cereal 

 food by-products, brewers' grains, malt sprouts, Sucrene Dairy Feed, Blatchford 

 calf meal, corn meal, hominy meal, oat feed, corn-and-oat feed, corn-oat-and-barley 

 feed, Kafir corn, corn screenings, chop feed, shredded wheat, ground oats, barley 

 meal, rye feed, rye meal, Marsden's new food product (ground corn shives), con- 

 centrated food, poultry feeds, scratching food, scratching grain, clover meal, cut 

 clover, and meat and bone meal. 



The standards adopted for the different concentrated feeds are quoted. The results 

 of the analyses are discussed as follows: 



"(1) The cotton-seed meals shipped into Massachusetts the past year were practi- 

 cally free from adulteration, yet the guaranteed meals averaged 1 percent higher in 

 protein, showing the advisability of buying only branded goods. The guaranty in 

 all cases should be supported by the name of the manufacturer or wholesaler. 



"Last spring several samples of dark-colored meal were taken by our inspectors, 

 and a number of others were sent in for examination, which, upon analysis, gave a 

 high percentage of protein, proving that color alone is not a safe guide. 



"(2) Cleveland flax meal, old process and new process linseed meals, gluten meals, 

 and gluten feeds are of fair average composition with the exception of the old proc- 

 ess linseed meals, which are low in many cases. 



"(3) Of the wheat feeds, the middlings show quite a wide variation in percentage 

 of protein as a result of different methods of manufacture; the mixed feeds with 

 few exceptions are of fair quality, and the brans are of a high and very uniform 

 grade. 



"(4) The oat feeds show the most serious adulteration of any feeds on the market. 

 Many of them fall below 7 per cent in protein with an average of 45 per cent of 

 coarse material." 



