206 EXPERIMENT STATION RECORD. (.Vol. 36 



and peanut oil, 7. From comparative data submitted there appears to be no 

 definite relation between the new sulphur-dioxid number and the Maumeng 

 number. 



I, Soy bean oil. II, Tlax studies, W. F. Washburn (North Dakota Sta. 

 Bui. 118 {1916), pp. S5-48). — Part 1 of this bulletin contains tabulated analyti- 

 cal data of the percentage of crude ether extract, Hanus iodin number of the 

 oil, saponification value at 25° C, refractive index at 25°, specific gravity at 

 15.5°, and the color of the oil of some 45 varieties of soy beans grown in a 

 number of States under various climatic conditions. The samples examined 

 included the crops of 1912, 1913, and 1914. 



It is indicated, in general, from the data that no definite conclusions could 

 safely be drawn as to the effect of climatic conditions on the content and quality 

 of oil of different varieties of beans until the beans had been grown at least 

 three years in the same locality. 



Exposure tests to determine the value of the oil as a paint vehicle are in 

 progress. 



Part 2 contains data obtained from the examination of various strains of flax- 

 seed, relative to the percentage content of moisture, protein, and oil and the 

 drying quality of the oil. Further data of the percentage content of moisture 

 and oil and iodin number, saponification number, refractive index at 25°, specific 

 gravity, and acid number of the oil obtained from immature and high-grade 

 flaxseed and from various strains of seed grown and harvested under the same 

 conditions, and also from the seed of flax which had been allowed to become 

 wet and injured to some extent after the harvest, are also submitted. 



The volatile oil of Calycanthus occidentalis, C. C. Scalione (Jonr. Indtis. 

 and Engin. Chcin., 8 {1916), No. 8, pp. 729-1/31).— The oil distilled from the 

 leaves and twigs of the plant possessed a greenish color, bitter taste, and cam- 

 phoraceous odor. The following constants were determined : Density at 25° C, 

 0.9295; rotation, +7° 28'; index of refraction at 20°, 1.4713; free acid, 0.05 

 per cent ; saponification value, 54.3 ; and acetyl value, 33.5. The oil was found 

 to be soluble in all proportions in 90 per cent alcohol, and in from 15 to 16 

 volumes of 70 per cent alcohol by volume. 



Seven fractions, the boiling points of which ranged from 154° to 220° and over, 

 were obtained by fractional distillation. From the examination of these frac- 

 tions the following percentage composition is given for the oil : Pinene {d and I), 

 8.3; cineol, 60.32; borneol, 9.21; camphor, ?; methyl salicylate, ?; linalyl 

 acetate, 18.99 ; sesquiterpene alcohols, ?. 



Volatile oil of Euthamia caroliniana, G. A. Russell {Jour. Amer. Chem. 

 Soc, 38 {1916), No. 7, pp. 1398-1402). — The oil examined was distilled from the 

 fresh herb gathered just previous to the flowering stage. The yield obtained 

 calculated with reference to the fresh material was 0.693 per cent. The oil was 

 pale yellow in color and possessed a pleasant aromatic odor. The following 

 physical and chemical constants were obtained: Specific gravity at 23° C, 

 0.8587; index of refraction, 1.4805; angle of rotation at 23°, —10° 48' ; saponifi- 

 cation value, 6.35 (equivalent to 2.1 per cent esters calculated as acetate) ; 

 acetyl value, 25.3 (equivalent to 7.01 per cent of alcohol in the original oil) ; 

 and ester number, 6.35. The oil was readily soluble in six volumes of 90 per 

 cent alcohol and clearly soluble in an excess. Qualitative tests for phenols were 

 negative, while a small amount of aldehydes was detected in the oil. 



The original oil was fractionated into three fractions, and after first being 

 saponified fractionated into six fractions. The analytical results obtained from 

 an examination of these fractious are submitted in detail. It is indicated that 

 the oil consists mainly of dipentene with a trace of pinene and possibly a small 

 amount of limonene. Although the oil had been distilled and stored for 15 



