108 PHILIPPINE RESINS, GUMS, AND OILS 



a resin oil. The oil distilling from 100° to 165° is colorless, with an orange- 

 like odor; specific gravity, ^2°=0.7692; A^iJ =-f 

 tillations the following fractions were obtained: 



like odor; specific gravity, "^^=0.7692; A'^J^ =-f37°.0. By two careful dis- 



Fraction 

 ( degrees. ) Grams. 



(1) 98-103 41 



(2) 103-110 18 



(3) .— 110-120 21 



(4) 120-140 12 



(5) ..._ 140-150 7 



(6) 150-155 47 



(7) 155-160 49 



Fraction No. 1 had a pleasant odor recalling oranges, and the following 



properties: specific gravity, ^4=0-6831; ND —1.3898; optical rotation=0. 



^ °^^ SO 



Fraction No. 7 had a turpentine-like odor. Specific gravity, —=0.8263, 



N^^°=1.4630. 



The properties of fraction No. 1 leave little doubt of the identity of this 

 compound with normal heptane. 



A second lot of petroleum nuts was obtained in December, 1908, from 

 one of the upper ridges of Mount Mariveles, Bataan Province. One tree 

 gave 15 kilos of fruits, which by pressure yielded 809 cubic centimeters 

 of oil. The residue ground up and distilled with steam yielded 73 cubic 

 centimeters more. This oil distilled in steam contained no heptane, show- 

 ing that probably all the latter is in the oil cavities immediately surround- 

 ing the seeds, and that the pulp of the fruit contains only resins and the 

 higher boiling portions of the oil. It was also noted that the leaves, 

 branches, bark, wood, and in fact, all parts of the tree are distinctly resinif- 

 erous and have the same pleasant, orange-like odor as the fruits. * * * 



Pittosporum resinifeiiim is a tree reaching a height of 25 to 

 30 meters, although in many cases it fruits when not over 6 

 to 12 meters high. It has fragrant, white flowers, about 1.3 

 centimeters long, which are borne in clusters on the stem. The 

 leaves are smooth, pointed at both ends, and usually between 

 8 and 15 centimeters in length. The fruits are about 3 cen- 

 timeters long. 



This species is not very abundant in any part of the Islands, 

 but is widely distributed and usually found on high mountain 

 ridges. 



Family LEGUMINOSAE 



Genus ARACHIS 

 ARACHIS HYPOGAEA L. Mani or PEANUT. 



PEANUT OIL 



This plant is rather extensively grown in the Philippines and 

 yields the edible nuts known as peanuts or ground nuts, from 



