DAI UN' KAItAriNd- -DAIHVINC. 977 



of lilt' product. Willi t'lTslily killed |)iiult ry IIk- iiintlcr is very liirucly .-i (|ii("s- 

 tioii of the imrrlinsc df smnci liiii:; which is v:iluclcss, .-is llic iiitcsl iiics and Ihcir 

 loiilc'Uts may ordiuai'ily he soon wiliidi-aw n. 



As re^iii'ds cokl-storago producls in p'iKM-al. "Ilici-c may he som<> <|U('slion as 

 to tlio d('l('t(>iMous effect of proloiit^cd slm-a^'o. II may be rcasoiialdy contended, 

 as it has heeii contended, that tliese pi-odncts are lil lor human consum[ption so 

 loii^ as they are palatahle. However. Die skilllniness of purveyors of foods 

 in jirev (Mitini; apparent decomposition liy the use of antiseptics and deodorants 

 impresses us that we can not i-ely upon the senses in (h'terminin«; the i)oisonous 

 cliaracter of foods." 



Composition of body fluids in marine animals, S. Hagi.ioni {Beitr. Chcin. 

 I'In/siol. ti. I'iUh.. !> iliXii;). pp. .Ifi-CC: iihs. ill Joiir. Clicm. Soc. \ London]. Hn 

 (HXXi). \o. r,.]i). //. p. ,S'6',9). — Chemical studies of the body thiids of fish and 

 other marine animals are reported. The body lluids of \;irions marine inver- 

 tebrates contain very variable^ amounts of i)r()teiii. In hi,i,'liei- mollnsks and 

 arthi'opods the amount of i)rotein is important and tlie ([uantity of extractive 

 nitrogen is small, bein;^ less than one-teiiili ef I per cent. 



DAIRY FARMING— DAIRYING. 



A profitable tenant dairy farm, L. < "akkiku ( /. s. Dcpt. Ai/r.. Farmers' Bui. 

 .^^'0. pp. Id. ti(/.'<. ,J). — This is a description of a daii-y farm of 120 acres, 

 located in southern ;Michi,i;an. from which both owner and tenant received 

 adeipiate compensation for their investment and services. Particular attention 

 was p.aid (o increasinti the fertility of the soil. 



Comparison of concentrates for dairy cows, J. K. Fain {Mnjiiiki Sfa. Rpt. 

 I'joil. pp. 'il-'i'i). — Cotton-seed meal and corn-and-cob meal were mixed in such 

 liroportioii (IHO.a to ;>G0.5) as to contain the same amount of digestible protein 

 as whe.Mt bran. The mixed feed and the bran were fed to 2 lots of 8 cows each 

 fi>r 117 days. There was very little difference ($1.45) in the cost of feeding 

 the '1 groups of animals for the time mentioned. The 8 cows fed bran lost 224 

 Mis. in weight, while those fed the mixed feed gained 00 lbs. The difference in 

 the production of the 2 groups, amounting to l,2f)2 lbs. of milk and 81. <j lbs. of 

 butter, was also in favor of the mixed feed. The author, therefore, concludes 

 that just as good or better results can be secured from a mixture of corn-and-cob 

 meal and cotton-seed meal as from wheat bran. 



Potatoes as a feed for dairy cows, II. Isaachsen (Bcr. \or(/rs Landbr. 

 //o/.s/.o/e.s Virls., 190-')-6. pp. 183-202).— \ study was made of the relative value 

 of potatoes and turnips for dairy cows. Eight cows sepiirated into 2 lots were 

 included in the experiment, which lasted from March 1.") to .May 2."). The cows 

 received from 1.8 to 2.7 kg. of dry matt(>r in the rcots oi- tubei-s \un- head daily, 

 from 8.8 to i:!.2 kg. of iK)tatoes and 2(> to .".<) kg. of lurniiis IxMUg fed. 



The cows did not yield (piite so much milk on iiotatoes as on turnips. Tli(> 

 potatoes did not in.jure th(> health cr general condition of the cows, nor 

 was any deleterious intiuence to be noticed as regards the fat content of the 

 milk, tlie time of churning, the water content of the butter, or the chemical 

 propei-ties of the butter fat. as shown by the iodin number. Reichert. and 

 KiUtstorfer numbers. The flavor of the butter pi'oduced on the potato ration 

 was i)()ssibly not quite equal to that of the butter i)roduced on the turnip ration. 

 I'nictical experiences as to the value of potatoes for cows were also ascertained 

 and are summarized in the jiaper.-- i'. w. woll. 



