678 EXPEKIMENT STATION EECORD. 



tion. According to Zunz, after dentero B has reached its maximum, deutero 

 A predominates, and finally dentero C." 



Heteroalbnmose conld not be derived from the casein, although traces were 

 found which probably came from albumin. The filtrate from the caseoses was 

 treated with ammonia and ferric ammonium sulphate. The resulting brown 

 precipitate corresponds to the a- and j3-peptones of Siegfried. Further treat- 

 ment by washing with iron alum, decomiX)sing with barium hydroxid, expelling 

 the ammonia, removing the barium witli sulphuric acid, and concentrating in 

 alcohol gave a substance analogous to Winterstein's a-peptone (E. S. R., IG, 

 p. 196) in the precipitate, and j3-peptone in the filtrate, present in equal amount 

 and comprising about 1.6 per cent of the cheese. After the removal of caseoses 

 and peptones, polypeptids were found. 



Using Kossel's older method (E. S. R., 10, p. 313), diamino acids or hexone 

 bases were found in a 3 lig. sample of cheese in the following amounts : His- 

 tidin 1.1 gm., arginin 0.6 gm., and lysin 1.9 gm. Other hexone bases were 

 present in small amounts. Another 3 kg. lot of cheese, examined for mono- 

 amino acids, yielded about 5 gm. glutamiuic acid, 8 gm. tyrosiu, and 14 gm. 

 leucin. Folin's method is recommended for the determination of ammonia. 

 The author failed to find indol, skatol, mercaptau, hydrogen sulphid, phenols, 

 and other putrefactive products except in cheese otherwise unfit for eating. 

 The greater part of the phosphorus is liberated and api^ears as acid calcium 

 phosphate. 



Paraffining butter tubs, L. A. Rogers ( U. 8. Dept. Agr., Bur. Anim. Industry 

 Circ. 130, pp. 6, fig. 1). — By applying paraffin to butter tubs there is less loss 

 of weight in the butter, as is shown in the following experiment : Twelve pai'af- 

 fined tubs containing 766* lbs. of butter lost 71 lbs. in shipment. A similar 

 lot of 12 paraffined tubs containing 756 lbs. of butter lost only 1^ lbs. " If 

 properly applied 2 or 3 oz. of paraffin should be sufficient to coat a 60-pound 

 tub. A good grade of paraffin can be bought for 8 or 9 cts. a pound. 



" It is more difficult to prevent mold on prints wrapped in paper and packed 

 in boxes, because the air can not be excluded as it can in tubs. The boxes 

 may be protected from mold by paraffining. Liners should be stored and pro- 

 tected from dust, and cartons should be so paraffined that they will not absorb 

 water." The proper temperature to apply the paraffin is about 240° F. The 

 author has devised a machine for spraying the paraffin on the tub, which is 

 described. 



Officials, org'anizations, and educational institutions connected with the 

 dairy interests, 1908 {V. 8. Dept. Agr., Bur. Anim. Indus. Circ. 135, pp. 31). — 

 This contains an address list of the principal officials in the Dairy Division of 

 this Department, State dairy officials, National, International, Canadian, and 

 State dairy associations, medical milk commissions and associations of breed- 

 ers of pure-bred dairy animals, outlines of courses in dairying in agricultural 

 colleges and other institutions, and an outline of the work carried on by the 

 Dairy Division and also that in the interest of dairying conducted by the 

 Farmers' Institute Specialist of this Office. 



VETERINARY MEDICINE. 



Report of the department of veterinary science and bacteriology, 1907, 

 W. B. Mack {Nevada Sta. Bui. 63, pp. 43-52, pis. Jf). — An account is given of a 

 horse affected with chronic hydrocephalus, of pervious urachus in a foal, and of 

 traumatic pericarditis in a heifer. A detailed report is also given of the symp- 

 toms found in sheep that had fed on poisonous plants and of the result of post- 

 mortem examinations. The condition found in a fowl affected with fibro-sar- 



