192 
fodders, etc., when fed in excess, tend to decrease the per cent of olein, 
while linseed meal, gluten feeds, succulent pasture grasses, etc., are con- 
ducive of raising the per cent of olein. 
The volatile fatty acids do not seem to be appreciably affected by 
the feed the cows receive. They are influenced, however, by the period 
of lactation as shown in Tables IX and X.* 
TABLE IX. 
Showing the Effect of the Period of Lactation on the Milk Futs. 
ce Hoe Soluble Insoluble 
5 er Acids. Acids. 
Tstmonth2% 2s. - on os See Saeco. = SEY eR : 32.41 7.39 87.26 
SAMO a. 2c casera ws yankee Mey Oe ere 29.48 7.07 87.99 
SALMON tye cnet amet se ais here eee ates Sexe - , 29.95 7.08 87.90 
erie arc le a OE ras eae aetna 29.97 ell 87.72 
BEhMOnt hve wec ec eet tw orisaenwnmer ieee ¢ ota and ot pate 29.56 7.00 87.72 
(Gilt omt le creai ates tert tare as eaten Se rent chat a ee war 29.21 6.82 , 88.19 
AMMMOTIOU GL ctataioiarsts sive wie)s Pals noe eentaon ene alte 28.06 6.45 88.4 
SG VIMOMU Ds Res. ta 0 is snardn dye eiate ea ears a aie ere 25.32 | 5.84 88.6 
9th month........ — natok | 95.45 | 6:01 ..|- S806 
10th month... . te : se PE AeA Shite 27.45 | 6.26 88.1 
1 Hunziker. Proceedings of the Indiana Academy of Science, 1908, page 144. 
