370 
Journal of Agricultural Research 
Vol. XXIV» No. 5 
TabIv]^ V .—Weight and analysis of fractions —Continued 
PKGGY 
Fraction No. 
Range of 
fraction. 
Weight of 
fraction. 
Saponification 
number. 
lodin number. 
Ethyl oleate. 
®C. 
dh 70 to 90 
goto 167 
167 to 220 
220 to 260 
260 to 286 
286 to 317 
317 to 328.5 
Gm. 
Mgm. 
01,239.987 
412.882 
343.102 
273.896 
240.286 
218.762 
203.218 
Per cent. 
3. 
5 . 
6 . 
Total. 
4.5351 
4.3029 
5.7014 
14.9828 
54.2113 
92.9064 
176.6399 
2.279 
5-383 
9-093 
11.265 
12.135 
14.813 
2.787 
6-583 
11.119 
13-775 
14.839 
18.II4 
« Total alkali-consuming power of the fraction. 
XABh^ VI .—Fatty acids in butter fat 
Fatty adds. 
Colantha 11- 
Samantha II. 
Cedlen. 
Peggy. 
Soluble acids: 
But3rric acid (by difference). 
Caproic acid. 
Caprylic acid... 
Capric acid. 
Total. 
Per cent. 
2.260 
1.588 
.648 
1.974 
Per cent. 
2.928 
1.688 
.744 
1.663 
Per cent. 
3.007 
1,794 
.881 
1*544 
Per cent. 
2.726 
1.290 
.779 
1*715 
6.470 
7.023 
7.226 
6.510 
Insoluble acids: 
Laurie acid. 
Myristic acid. 
Palmitic acid (by difference). 
Stearic acid. 
Oleic acid. ..... 
Total. 
7.618 
19.768 
14.803 
12.114 
34.063 
6-317 
17-455 
16.196 
14.928 
32.931 
5.616 
20.534 
12.321 
17.800 
31*323 
6.598 
21.782 
22.863 
11.838 
88.366 
87.827 
87-594 
88.354 
Total fatty acids. 
94.836 
94.850 
94.820 
94.864 
The percentage of butyric acid was 2.594 the Holsteins and 2.867 
in the Jerseys; of caproic acid, 1.638 and 1.542; of caprylic acid, 0.696 and 
0.830; and of capric acid, 1.819 and 1.630. The differences were com¬ 
pensating, the high percentages alternating, but were not sufficiently 
indicative to warrant deductions. The percentage of lauric acid was 
6.968 in the Holsteins and 6.107 the Jerseys; of myristic acid, 18.612 
and2i.i58;of palmitic acid, 15,500 and 17.592; of stearic acid, 13.521 and 
14.819; and of oleic acid, 33.497 and 28,298. The outstanding feature 
was the low oleic acid content of Peggy's fat, which necessarily affected 
the results. Despite this fact, however, a lower percentage of myristic 
and sterac acids and a higher percentage of oleic acid appeared to be 
characteristic of the Holsteins as contrasted with the Jerseys. 
As compared with the herd sample (Table II) neither breed showed 
any appreciable differences to which attention has not already been 
called. That the percentage of caproic acid in the herd sample was 
apparently abnormal, being noticeably lower than is indicated by a 
subsequent average, is taken into consideration. 
