INFLUENCE ON LINSEED OIL OF SOURCE OF FLAX, ETC. 9 
varieties at any one station during either 1914 or 1915. Station aver- 
ages are likewise variable during the two seasons. Some of the Cereal 
Investigations numbers are seen to possess fairly constant iodin values 
for the two years at particular stations, while others show some 
variation. 
The iodin value, which depends upon the composition of the oil, 
is doubtless affected by conditions of season and growth. 
Table III. — Chemical properties and drying tests of various oils from the flax crops of 
1914 and 1915. 
Station and C. I. No. of 
Acid value. 
Saponification 
value. 
Iodin value. 
Time to dry 
(days). 
seed sample. 
1914 
1915 
Aver- 
age. 
1914 
1915 
Aver- 
age. 
1914 
1915 
Aver- 
age. 
1914 
1915 
Aver- 
age. 
Moccasin, Mont.: 
No. 3 
0.78 
.79 
.83 
.79 
0.60 
.68 
.91 
.64 
0.69 
.73 
.87 
.71 
191.0 
189.3 
192.4 
191.4 
188.7 
192.8 
189.7 
186.6 
189.8 
191.0 
191.0 
189.0 
156.6 
156.0 
159.3 
159.2 
156.2 
153.5 
154.0 
155.0 
156.4 
154.7 
156.6 
157.1 
18 
18 
18 
14 
14 
10 
10 
15 
16 
No. 12 
14 
No. 13 
14 
No. 19 
14.5 
Seasonal average . . . 
.797 
.707 
191.0 
189.4 
157.8 
154.7 
17 
12.2 
Tickinson, N. Tak.: 
No. 3 
1.05 
.70 
.99 
1.36 
.81 
.85 
.86 
.76 
.93 
.77 
.92 
1.06 
192.0 
187.8 
192.8 
189.8 
187.2 
186.3 
186.2 
186.7 
189.6 
187.0 
189.5 
188.2 
164.3 
170.0 
165.3 
169. 5 
162.4 
168.5 
161.0 
159.0 
163.3 
169.2 
163.1 
164.2 
8 
8 
6 
6 
21 
20 
19 
21 
14.5 
No. 12 
14 
No. 13 
12.5 
No. 19 
13.5 
Seasonal average . . . 
1.025 
.820 
190.6 
186.6 
167.2 
162.7 
7 
20.2 
I 
Mandan, N. Dak.: 
No. 3 
1.11 
1.01 
1.04 
1.07 
.86 
.95 
.78 
.55 
.98 
!91 
.81 
192.5 
191.9 
190.2 
192.1 
199.8 
186.9 
187.0 
188.0 
196.1 
189.4 
188.6 
190.0 
164.3 
161.7 
162.4 
159.3 
160.7 
162.4 
163.3 
159.9 
162.5 
162.0 
162.8 
159.6 
10 
10 
10 
10 
20 
16 
18 
19 
15 
No. 12 
13 
No. 13 
14 
No. 19 
14.5 
Seasonal average . . . 
1.057 
.785 
191.7 
190.4 
161.9 
161.6 
10 
18.2 
Newell, S. Tak.: 
No. 3 
1.13 
1.11 
1.04 
1.00 
.67 
.76 
.74 
.78 
.90 
.93 
.89 
.89 
190.2 
191.4 
191.0 
188.7 
184.6 
185.9 
184.7 
187.7 
187.4 
188.6 
187.8 
188.2 
155.2 
154.0 
160.0 
161.8 
162.1 
159.5 
167.7 
158.0 
158. 6 
156.7 
163.8 
159.9 
24 
26 
24 
20 
22 
22 
20 
20 
23 
No. 12 
24 
No. 13 
22 
No. 19 
20 
Seasonal average . . . 
1.07 
.737 
190.3 
185.7 
157.7 
161.8 
23.6 
21 
Highmore, S. Dak.: 
No. 3 
.93 
1.39 
1.16 
1.66 
.71 
.74 
.55 
.78 
.82 
1.06 
.85 
1.22 
195.6 
193.6 
191.3 
190.3 
187.9 
187.9 
188.4 
188.1 
191.7 
190.7 
189.8 
189.2 
162.0 
157.7 
153.1 
156.7 
160.3 
161.4 
161.9 
164.7 
161.1 
159.5 
157.5 
160.7 
23 
21 
23 
23 
18 
12 
15 
15 
20.5 
No. 12 
16.5 
No. 13 
19 
No. 19 
19 
Seasonal average . . . 
1.285 
.695 
.90 
.93 
.90 
1.06 
192.7 
188.1 
157.4 
162.1 
22.5 
15 
Archer, Wyo.: 
No. 3 
.86 
.80 
.62 
.82 
.88 
.86 
.76 
.94 
191.9 
190.3 
193.0 
182.3 
187.9 
186.1 
186.7 
186.9 
189.9 
188.2 
189.8 
184.6 
165.5 
170.6 
163.0 
167.5 
171.7 
180.0 
170.0 
165.5 
168.6 
175.3 
166.5 
166.5 
12 
12 
14 
9 - 
9 
15 
13 
12 
10.5 
No. 12 
13.5 
No. 13 
13.5 
No. 19 
10.5 
Seasonal average . . . 
.775* 
.947 
189.4 
186.9 
166.6 
171.8 
11.7 
12.2 
Burns, Oreg.: 
No. 3 
.95 
1.03 
.90 
1.02 
.44 
.37 
.62 
.60 
.69 
.70 
.76 
.81 
189.1 
190.7 
192.4 
192.6 
188.4 
185.0 
187.3 
188.9 
188.7 
187.8 
189.8 
190.7 
161.4 
167.8 
160.1 
158.0 
158.0 
158.4 
160.3 
157.0 
159.7 
163.1 
160.2 
157.5 
20 
18 
18 
18 
10 
10 
8 
8 
15 
No. 12 
14 
No. 13 
13 
No. 19 
13 
Seasonal average . . . 
.975 
.507 
191.2 
187.4 
161.8 
158.4 
18.5 
9 
In addition to the physical and chemical properties of the oils under 
discussion, the drying property, which is of importance, was deter- 
