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 



188.7 



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 



189.3' 192.8 

 192.41 189.7 

 191.4 186.6 



14 



No. 13 



14 



No. 19 



14.5 







Seasonal average . . . 



.797 



.707 





191.0, 189.4 





157.8 



154.7 





17 



12.2 





Dickinson, N. Tak.: 



No. 3 



1.05 

 .70 

 .99 



1.36 



.81 

 .85 

 .86 

 .76 



.93 



.77 

 .92 

 1.06 



1 

 192.0 187.2 

 187.8 186.3 

 192.8 186.2 

 189.8 186.7 



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' 



1 



190.6 186.6 





167.2 



162.7 





7 



20.2 





Mandan, N. Dak.: 



No. 3 



1.11 

 1.01 

 1.04 

 1.07 



.86 

 .95 

 .78 

 .55 



.98 

 .98 

 .91 

 .81 



192.5 

 191.9 

 190.2 

 192.1 



199.8 

 186.9 

 187.0 

 188.0 



196.1 



189.4 

 18S.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. rak.: 



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 



24 

 2fi 



22 

 22 

 20 

 20 



23 



No. 12 



24 



No. 13 



163.8 24 



159.9 20 



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 



1.86 



.71 



.74 

 .55 



.78 



.82 

 1.06 



.85 

 1.22 



195.6 



187.9 



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 



IS 

 12 

 15 

 15 



20.5 



No. 12 



No. 13 



193.6' 187.9 

 191.3! 188.4 

 190.3 188.1 



16.5 

 19 



No. 19 



19 







Seasonal average . .. 



1.285 



.695 





192.7 



188.1 





157.4 



162.1 





22.5 



15 





Archer, Wyo.: 



No. 3 



.86 

 .80 

 .62 

 .82 



.90 

 .93 

 .90 

 1.06 



.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 

 1S8.9 



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 



s 



8 



15 



No. 12 



14 



No. 13 



13 



No. 19 



13 







Seasonal average . . . 



.975 



.507 





191.2 



187.4 





161.8 



158.4 





IS. 5 



9 





In addition to the physical and chemical properties of the oils under 

 discussion, the drying property, which is of importance, was deter- 



