10 
BULLETIN U71, U. S. DEPARTMENT OF AGRICULTURE 
Table 6. 
-Oil content of flaxseed of the varieties grown during the gears 1919 
to 1924, inclusive, at the designated experiment stations 
C.I. 
No. 
Num- 
ber of 
sam- 
ples 
Crop years 
1919 
1920 ] 1921 
1922 
1923 
Variety name 
Experiment stations at— 
Fargo, 
N. 
Dak. 
Fargo, 
N. 
Dak. 
Fargo, 
N. 
Dak. 
Dick- 
inson, 
N. 
Dak. 
Fargo, 
N. 
Dak. 
Moc- 
casin, 
Mont. 
Dick- 
inson, 
N. 
Dak. 
Fargo, 
N. 
Dak. 
Man- 
dan, 
N. 
Dak. 
3 
8 
12 
13 
14 
17 
19 
12 
14 
13 
17 
6 
5 
9 
P.ct. 
41.87 
37.71 
37.80 
39.00 
37.53 
40.31 
P.ct. 
40.77 
40.43 
41.72 
42.66 
39.45 
38.05 
P.ct. 
35.91 
35.88 
36.38 
36.75 
36.96 
38.05 
P.ct. 
42.45 
38.53 
40.90 
40.12 
38.44 
40.84 
P.ct. 
P.ct. 
P.ct. 
40.23 
~37."95" 
36.84 
P.ct. 
~37."48" 
"39." 73" 
P.ct. 
41.53 
N. Dak. R. No. 52 
39.99 
40.37 
40.40 
39.82 
40.61 
40.45 
40.59 
40.59 
39.42 
"39.03 
N. Dak. R. No. 114 
N. Dak. R. No. 73- . 
38.69 
Frontier . _ 
39.31 
40.56 
40.27 
41.22 
4.30 
3.60 
2.20 
4.00 
1.20 
.80 
3.40 
2.30 
2.80 
C.I. 
No. 
Num- 
ber of 
sam- 
ples 
Crop years 
1923 
1924 
Variety name 
Experiment stations at — 
Moc- 
casin, 
Mont. 
Newell, 
S. Dak. 
San An- 
tonio, 
Tex. 
Dick- 
inson, 
N. Dak. 
Boze- 
man, 
Mont. 
Man- 
dan, 
N. Dak. 
Moc- 
casin, 
Mont. 
San An- 
tonio, 
Tex. 
Damont 
3 
8 
12 
13 
14 
17 
19 
12 
14 
13 
17 
6 
5 
9 
Per cent 
43.26 
41.35 
42.95 
43.16 
Per cent 
42.46 
39.76 
41.10 
40.08 
Per cent 
38.78 
37.50 
39.28 
38.55 
Per cent 
45.81 
40.62 
41.02 
42.04 
Per cent 
36.97 
Per cent 
Per cent 
Per cent 
41.36 
N. Dak. R. No. 52 
Primost 
40.06 
39.13 
41.45 
43.21 
N. Dak. R. No. 114 
N. Dak. R. No. 73... 
40.18 
40.50 
39.82 
41.64 
Frontier _. ._ 
Reserve..- - .. 
42.78 
38.64 
42.29 
41.97 
42.28 
1.90 
2.70 
1.80 
5.20 
3.20 
2.20 
2.80 
1.90 
PHYSICAL TESTS FOR DETERMINING OIL CONTENT OF 
FLAXSEED 
Knowing something of the range in oil content of different lots 
of flaxseed, and knowing in a general way why these variations 
occur, it is important to know what tests can be applied to lots of 
flaxseed which will indicate satisfactorily their oil content. 
The tests in most general use are physical in nature, and are em- 
bodied in the grading rules of most grain-inspection departments. 
Outstanding among these tests is that for weight per measured bushel. 
Other tests are made for the presence of moisture in the sample and 
for the percentage of damaged seed and foreign material. Nota- 
tions regarding the section of the United States in which the flaxseed 
was raised are usually made in connection with these tests. 
