﻿8 CLOVER. 



104r°-105° after recrystallizing twice from alcohol. The oil treated 

 with, hydrochloric acid gas in glacial acetic acid, gave a good yield of 

 dipentene dihydrochloride; melting point after recrystallizing from al- 

 cohol, 49 o_ 50°. I,A, purified, gave a granular nitrosyl-chloride when 

 treated according to the method of Wallach. The odor of the oil was 

 plainly that of commercial carvene. Metallic sodium when heated with 

 the oil had very little effect on it and after having been distilled from 

 sodium it was found to boil completely at ordinary pressure from 176°. 5 

 to 177°. 5. The oil appears to be pure dextro-limonene. 



I,C was allowed to stand nearly a year before it was purified. It was re- 

 distilled twice at reduced pressure and on the second fractioning the major portion 

 of it was obtained as a yellowish-green product, boiling completely between 165°. 5 

 and 108°. 5 at 33 millimeters (I,C, purified). 



Sp.gr., 3 4 °= 1.0247. a ^=0. n £ = 1.5143. 



Sample II was collected near Atimonan, Tayabas, from a tree having 

 a diameter of about 3 feet near the base and laden with unripe nuts. 

 The sample, of which 815 grams were used, was softer than the previous 

 one. 



The first distillate at 125°, amounted to 50 grams (II,A) ; the 

 second at 210° (IT,B), was 123 grams; the third at 250° (II,G), was 30 

 grams. The terpene oil was distilled from II,B at reduced pressure and 

 the residue added to II,C. The total terpene oil was 132 grams or 16.2 

 per cent; the high-boiling oil, 71 grams or 8.7 per cent. 



II,A was decanted from a small amount of water which collected with 

 it. It was then distilled twice at 36.5 millimeters, passing over the second 

 time almost completely between 82°. 5 and 83°. 5; three-fourths of it 

 distilled at almost a constant temperature or at most within 0°.25 (II,A, 



purified). a^=:-j-100 o . The product gave no test for phellandrene 



With bromine in acetic acid the 101° to 105° melting limonene tetra- 

 bromide was obtained and a granular nitrosyl-chloride was also readily 

 formed. It also gave dipentene dihydrochloride melting at 50°. It 

 was distilled from metallic sodium, after which it boiled completely 

 between 176° and 177°, accordingly at a slightly lower temperature than 

 I, A, purified; however, it possessed the same odor and, so far as could 

 be determined, was identical in all other respects. 



II,C stood for over a year and was then fractionated twice at reduced pressure, 

 whereupon about one-half of it was obtained as a light, yellowish-green product, 

 boiling completely from 107° to 169°. 5 at 35 millimeters (II,C, purified). 



Sp. gr., 3 4 °= 0.9522. a ]q=— 2°.7. n ^ =1.4973. 



Sample III, which was quite soft, was obtained from a young tree, 

 smaller than that from which Sample I was taken, and standing very 

 close to the latter tree. It was first distilled at 125° for the terpene oil 



