504 



milk is acid, which so frequently occurs, the amount of paper extract will even eqnal 

 or exceed the weight ol; fat present. The paper nictliod can not he used with satis- 

 faction or safety ou skim-milk or buttermilk, while the ignited asbestos can be. 



Comparison of Bahcoelc's centrifugal method with the gravimctriG 

 method. — The results of determinations of fat by the centrifugal method, 

 described by S. M. Babcock in Wisconsin Station Bulletin No. 24 (See 

 Experiment Station Record, Vol. IF, p. 25G), were compared with those 

 by the gravimetric in seventeen duplicate trials. The largest differ- 

 ence, 0.19 per cent of fat, occurred in a sample of watered milk which 

 had been kept 24 hours. The difference did not exceed 0.13 per cent 

 in any other case. The author considers that " for the use of dairy- 

 men this is the most rapid and accurate method which has yet been 

 tested in tliis laboratory." 



On the effect of a grain ration for coirs at pasture. — Tabulated analj^ses 

 of milk already reported iit connection with a feeding experiment in 

 Bulletin No. 22 of the station (See Experiment Station Record, Vol. 11, 

 p. 3G9). 



Cream raising hi/ dilution. — Tabulated data on this subject already 

 reported in Bulletin No. 20 of the station (See Experiment Station Rec- 

 ord, Vol. If, p. 284), together willi the results of four additional trials. 



Variations in fat of viill: served to customers in dipping from cans. — A 

 reprint of the analyses published in connection with this test in 

 Bulletin No. 20 of the station (See Exj)eriment Station Record, Vol. 

 II, p. 286). 



Miscellaneous millc anali/ses. — This includes the composition of the 

 mixed milk from the same herd in December and in August, composi- 

 tion of milk from a cow having udder inllammation, and analyses of 

 cream. "In ten samples of cream in which the fats only were deter- 

 mined, the percentages ranged from 14.40 to 28.15." 



Analyses of cattle foods, W. P. Cutter, B. S. (p. 151). — Analyses 

 of corn meal, tlesh meal, linseed meal, cotton-seed meal, wheat middlings, 

 silage, corn, corn cobs, red beets, malt sprouts, hay, clover hay, red 

 clover hay, timothy hay, and pea hulls, with reference to their value as 

 feed. 



Miscellaneous analyses, H. Snyder, B. S. (pp. 152, 153). — Analy- 

 ses are given of wood ashes, tankage, sea-grass and mud, a 2-year-old 

 apple-tree, " milk and cream preservaline," blood from a sheep, and 

 evaporated apples. One kilogram of the api^les contained 0.583 gram of 

 zinc, believed to have come from the pans used, for evaporating. 



Hollyhock rust, W. R. Dudley, M. S. (pp. 154, 155, illustrated). — 

 A brief account of the fungus causing hollyhock rust {Puccinia malva- 

 ceariim, Mont.), and the formula for a remedy which has been found 

 effective. This formula, which is taken from the Gardeners' Chronicle 

 for 1874, p. 243, is as follows : permanganate of potash (sat. sol.), 2 

 tablespoonfuls; water, 1 quart. Apply to the spots and all diseased 

 parts with a sponge, and not a syringe or sprayer. This disease has 



