INFLUENCE ON LINSEED OIL OF SOURCE OF FLAX, ETC. 7 



Table II. — Yield and physical properties of various oils from the flax crops of 1914 and 



1915. 



[Color abbreviations: B=brown, d= 



leep, g 



=golden, l=lemon, p= 



=pale, r 



= reddish, v=very, y=yellow.] 



Station and C. I. No. of seed 

 sample. 



Yield of oil (per 

 cent). 



Color. 



Specific gravity at 

 24° C. 



Index of re- 

 fraction at 

 24° C. 



1914 



1915 



Aver- 

 age. 



1914 



1915 



1914 



1915 



Aver- 

 age. 



1914 



1915 



Moccasin. Mont.: 

 No. 3 



34.8 

 32.5 

 33.0 

 37.1 



34.12 

 33.00 

 34.50 



34.46 

 32.70 

 33.75 

 37.10 



gy— 

 gy-— 



pgy-- 



pgy-- 



dly... 



pgy-- 



0. 9273 

 .9293 

 .926S 

 . 9262 



0. 9283 

 .9288 

 .9305 

 .9286 



0. 9278 

 .9290 

 .9286 

 .9274 



.9299 

 .9304 

 .9300 

 .9290 



.9289 

 .9285 

 .9292 

 .9287 



.9282 

 .9276 

 .9298 

 .9279 



.9280 

 .9291 

 .9282 

 .9272 



.9294 

 .9288 

 .9296 

 .9300 



.9291 



.9289 

 .9291 

 .9287 



1. 4770 

 1. 4776 



1. 4772 

 1. 4782 



1.4808 

 1. 4806 

 1. 4802 

 1. 4801 



1.4781 

 1. 4790 

 1. 4795 

 1.4783 



1. 4765 

 1.4760 

 1. 4782 

 1. 4765 



1. 4780 

 1. 4780 

 1. 4780 



1. 4773 



1. 4773 

 1.4777 

 1. 4782 

 1. 4778 



1. 4790 

 1.47S6 

 1. 4780 

 1.4783 



1. 4776 



No. 12 



No. 13 





No. 19 









Seasonal average 



34.35 



33.87 



.9274 



.9290 





36.91 



33. SO 

 31.80 

 36.20 



pgy-- 



dly... 

 vdly . 

 dly... 



vdgy. 



pgy-- 



vdgy. 

 pb, r. 

 tint. 





Dickinson, N. Dak.: 



No. 3 



36.8 

 34.6 

 31.4 

 35.3 



37.03 

 33.00 

 32.20 

 37.10 



.9308 

 .9315 

 .9305 

 .9302 



.9291 

 .9293 

 .9295 

 .9289 





No. 12 





No. 13 





No. 19 



1 4782 







Seasonal average 



34.52 



34.82 



.9307 



.9292 





33.9 

 33.57 

 33.98 

 35.55 



pgy-- 



ply... 

 dly... 

 dly.. . 



vpg-- 

 vpgy- 



gy---- 

 pgy-- 





Mandan, N. Dak.: 



No. 3 



34.0 

 31.44 

 33.24 

 35.6 



33.80 

 35.70 

 34.72 

 35.50 



.9280 

 .9278 

 .9285 

 .9274 



.9298 

 .9292 

 .9300 

 .9301 



1.4790 

 1.4788 



No. 12 



No. 13 



1 4790 



No. 19 



1. 4787 









33.74 



34.93 



.9279 



.9298 







36.55 

 33.75 

 31.45 

 35.42 



dgy-- 



dgy-- 



pgy-- 

 pgy-- 



pgy-- 

 vpgy. 

 vpgy- 

 pgy-- 





Newell, S. Dak.: 



No. 3 



35.70 

 30.30 

 32.10 

 33.80 



37.40 

 37.20 

 31.80 

 36.84 



.9269 

 .9261 

 .9299 

 .9270 



.9295 

 .9292 

 .9297 

 .9288 



1.4787 



No. 12 



1.4783 



No. 13 



1 4789 



No. 19 



1.4780 



Seasonal average 



32.97 



35.81 



.9274 



.9293 





34.27 

 34.71 

 33.82 

 37.19 



vdgy. 



pgy-- 

 pgy- 

 pgy-- 



pgy-- 



vply . 



pgy-- 

 pgy-- 





Highmore, S. Dak.: 



No. 3 



33.99 

 33.42 

 33.20 

 36.70 



34.56 

 36.00 

 34.44 

 37.68 



.9280 

 .9272 

 .9277 

 .9260 



.9280 

 .9291 

 .9287 

 .9285 



1 4780 



No. 12 



1. 4782 



Ne. 13 



1. 4780 



No. 19 



1 4777 









34.32 



35.67 



.9272 



.92S6 







34.62 

 35.50 

 35.82 

 38.35 



dgy-- 



dly... 



gy---- 

 gy---- 



gy---- 

 pgy-- 

 pgy-- 

 pgy-- 





Archer, Wyo.: 



No. 3 



31.44 



32.24 

 33.44 

 36.30 



37.80 

 38.76 

 38.20 

 40.40 



.9279 

 .9267 

 .9277 

 .9283 



.9309 

 .9309 

 .9315 

 .9318 



1. 4796 



No. 12 



1. 4792 



No. 13 



1. 4796 



No. 19 



1. 4795 









33.35 



38.79 



.9276 



.9312 







35.11 

 32.90 

 31.97 

 35.15 



gy---- 

 pgy-- 

 py--- 

 py--- 



pgy-- 

 pgy-- 

 pgy-- 

 pgy-- 





Burns, Oreg.: 



No. 3 



35.38 

 32.40 

 32.35 

 37.10 



34.84 

 33.40 

 31.60 

 33.20 



.9279 

 .92S0 

 .9282 

 .9275 



.9304 

 .9294 

 .9301 

 .9299 



1. 4790 



No. 12 



1. 4787 



No. 13 



1. 4790 



No. 19 



1. 4786 









34.30 



33.26 



.9279 



.9299 







1 







The color of the oils from the various flax samples, while primarily 

 golden yellow, differed considerably in the depth of the shade, 

 varying from a deep golden yellow bordering on brown to a very 

 pale lemon yellow or straw color. Whether there is any existing 

 relationship between the color and the quality of the oils can not be 

 definitely stated, unless it is found that the color properties can be 

 correlated with some of the more important physical and chemical 

 properties. 



