376 
Journal of Agricultural Research 
Vok.XXIV.No.5 
The percentage of butyric acid was 3.179 in the Holsteins (i sample) 
and 3.614 in the Jerseys; of caproic acid, 2.210 and 2.129; of caprylic acid, 
0.778 and 0.872; and of capric acid, 1.501 and 1.377. The differences were 
not pronounced, but there was a tendency toward a higher content of 
butyric and caprylic acids in the Jerseys. 
The percentage of lauric acid was 4.890 in the Holsteins and 4.669 in 
the Jerseys; of myristic acid, 19.287 and 19.922; of palmitic acid, 14.605 
and 13.796; of stearic acid, 15.680 and 19.227; and of oleic acid, 32.492 
and 29.166. The percentage of myristic and stearic acids was lower and 
that of oleic acid higher in the Holsteins than in the Jerseys. 
The soluble acids of the Holsteins were of the same general character 
as those of the herd sample (Table II), differing somewhat in total but 
more particularly in the amount of each acid in the mixture, although 
such differences were largely compensating. This was equally true of 
the insolubles. In the Jerseys these differences were even more marked 
than in the Holsteins. 
Tabl^ XVI. —Weight and analysis offractions of milk from cows intermediate in lactation 
(ethyl esters) 
COLANTHA 
Fraction No. 
Range of 
fraction. 
Weight of 
fraction. 
Saponification 
number. 
lodin number. 
Ethyl oleate. 
1 C 
•c. 
±70to 80 
80 to 148 
14810210 
21010248 
248 to 283 
28310318 
31810332 
Gm. 
Mgm. 
“1,397.089 
392.083 
350-465 
273-351 
238.216 
214.841 
198.452 
Percent. 
2. 
5-5029 
5-7301 
4-1855 
13.0994 
54-5059 
no. 1808 
3.112 
6.245 
11.659 
15.290 
18.830 
25.566 
3.806 
7-637 
14-257 
18.697 
23.026 
31.263 
^. 
A . 
t . 
6. 
7. 
Total 
193.2046 
SAMANTHA IV 
T 
±70 to 80 
80 to 139 
13910195 
195 to 235 
235 to 275 
275 to 315 
31510329 
“ 1,383.062 
397-596 
351-131 
269-935 
236.493 
213.021 
198.017 
3 . 
4 . 
5 . 
6 . 
7. 
Tntal 
5-4437 
5-6695 
4-3474 
13-3353 
54.8424 
108.1717 
2.984 
6.143 
11.561 
14-739 
18.383 
25.176 
3-649 
7-512 
14-137 
18.023 
22.480 
30.786 
191.8100 
CECILS II 
T 
±70 to 80 
8010153 
15310218 
218 to 257 
25710287 
28710317 
317 to 336 
“ 1.377-451 
390.056 
340.175 
273-495 
240.218 
216.355 
198-795 
3 .. 
4 . 
5 . 
6 . 
7. 
Tntal 
5-4392 
5-8774 
4.4112 
13.3860 
54-8585 
131.1700 
2.688 
4.798 
8.220 
10.728 
13-844 
20.386 
3.287 
5-867 
10.052 
I3.II9 
16.929 
24.929 
215-1423 
a Total alkali-consuming power of the fraction. 
