I )A 1 1; V FARMING DAIRYING AGROTECHNY. 



575 



ixnidc .Torscys .-md wci-c selected and managed with a view to the ])roduetion of 

 milk rich in I'al. Tiic Inllowing tahle gives the average composition of the after- 

 noon milk fnim Scptcmlicr. lOOO, to Angnst, lOO.j : 



Arcidjic ((tiiiiiosil ion (if coir'x iiiiU: Ini iiioiilh. 



Month. 



.lanuary 



February 



.Marcli 



.\l.ril 



May 



.lune . .• 



July 



Aug:ust 



September .. . 



October 



November . . . 

 December 



.\verage 



As compared willi the data obtained liy Itichmond in England, tlie author's 

 results show iu general similar seasonal variations in tat and solids-not-fat. 

 Tlie fat, however, varied less in proportion to the amount pi-esent and reached 

 a maximum somewhat later in the wintei', while the solids-not-fat varied more 

 and reached a maxinmm about a month earlier. 



Daily variations in milk, M. Siegfeld {Molk. Zt(/., 20 (1906), No. ////, pp. 

 I2.i!>~l.l'i1). — This gives the results of analyses of the milk of 8 herds during 1 

 .\('ar. The highest and lowest fat content for each herd during the year was as 

 follows : 1, 3.80 and iMo per cent ; 2, 4.75 and 2.20 per cent ; ;J, 4.30 and 2.75 per 

 cent ; 4, 4.75 and 2.25 per cent ; 5, 4.50 and 2.55 per cent ; 6, 4.00 and 2.70 per 

 cent : 7. 5.05 and 2.50 per cent ; and 8, 4.15 and 2.00 per cent. The causes of 

 variation are discussed. 



Fat content of ass's milk, Wagner (Ztschr. I'ntersuch. Nahr. u. Gcnussmtl., 

 12 (inoc). \n. 11. pp. 6.18, 6.7.9).— During the period from 1902 to 1000 analyses 

 were made of .">!)2 samples, the results showing a range in fat content from to 

 (1.7 per cent with an average of 0.125 per cent. 



Comparative study of the more important lactoses, (}. Bonamartini (Rev. 

 (Jrii. J, (lit. I! (lUtiil). \r). 1, pp. lo-lS). — Preparations of lactose were made from 

 (lie milk of the cow, ass. goat, and sheep, and also from lnim;in nnlk, and com- 

 liared as regards water of crystallization, reducing power, ])()lari/,atioii. and 

 form of crystals. These means failed to show any difference in tlie i)reparations 

 from the different sources. 



Leucocyte content of milk drawn from apparently healthy animals, H. L. 

 UissKi.i. and ('. IIoieman (./oin: Aiiicr. Med. As'.s'oc. '/? (l!Kt<!). \o. 2-'>, p. 2110). — 

 Tills is a brief abstract of a paper presented before the thirty-fourth annual 

 meeting of the American rublic Health Association held in Mexico City, Mexico, 

 December 3-7, IKOC. 



According to tlie authors, suthcient data have not yet been secured on the 

 leucocyte content of milk to warrant the formulation of a scientific standard for 

 Judging milk as to tlie presence of i)ns. They find wide variations in the leu- 

 cocyte content of mill< from cows having no discoverable udder lesion iku- pre- 

 \ ions liistory of garget. The number is often in excess of present standards. 

 I'lie antliors also find (bat ;i leucocytosis in animals subjected to changes in 

 envirounient may manifest itself in the leucocyte content of the milk. 



