. i Brill: Pangium edule and Hydnocarpus alcalas 45 



Table VII. — Properties of nuts and oil of Hydnocarpus alcalas. 



Average weight of fruit 



grams 420 



Hulls 



per cent 59.68 



Seeds 



do 40.32 



Moisture in seeds 



do 60.50 



Oil in dry seeds 



do 65.50 



Melting point 



degrees 32 



Specific gravity at 30° C. 



0.9502 



Specific rotation in chloroform 



degrees +49.60 



Iodine value (Hanus) 



93.10 



Acid value cc. 0.1 N alkali 



3.90 



Saponification value 



188.90 



Index of refraction 



1.4770 



Reichert Meissl No. 



4.43 



The nuts and the extracted oil were administered per os to 

 chickens without any noticeable ill effects. 



The free acids of the oil from Hydnocarpus alcalas were 

 examined. 



Table VIII. — Properties of the free acids of the oil from Hydnocarpus 

 alcalas. 



Melting point degrees 59 



Specific gravity at 30° C. 0.9342 



Specific rotation in chloroform 30/D degrees 53.65 



Iodine value (Hanus) 98.6 



Acid value cc. 0.1 N alkali 37.4 



Saponification value 193.0 



The free acids were then treated as described by Power for 

 the separation of chaulmoogric acid. More than 90 per cent of 

 these acids consist of a compound identical in properties with 

 the acid designated as chaulmoogric by Power. 



Table IX.— Properties of the acid isolated from the oil from Hydnocarpus 



alcalas. 



Melting point degrees 68-69 



Specific rotation in chloroform 30/D do +59.69 



Iodine value (Hanus) 89.7 



0.3400 gram of silver salt gave 0.0950 gram of silver, equal to 27.94 per 



cent silver. 



0.5040 gram of sodium salt gave 0.1206 gram of sodium sulphate equal 

 to 7.75 per cent sodium. 



Theoretical for C„H 3 COO Ag=27.86 per cent silver. 

 Theoretical for C 17 H 3 COO Na=7.62 per cent sodium. 



Only a small amount of the acids remained in the mother 

 liquor. No hydnocarpic acid could be isolated from this. The 

 latter exists in very small quantities in Hydnocarpus alcalse if 

 at all. Palmitic acid makes up the chief part of the remaining 



