— 117 — 



We identified the d-silvestrene in the oil by preparing the hydrochloride, 

 which melted at 71 to 72°. The oil also contained a small proportion 

 of a-pinene (m. p. of the nitrolbenzylamine 121 to 122°), as well as 

 /2-pinene, which we identified by oxidising it into nopinic acid (m. p. 125°). 

 The high-boiling fractions of the oil contained a sesquiterpene possessing 

 the following constants: di 5 o 0,9371, « D +37° 4', n D20 o 1,50252. It yielded 

 a hydrochloride crystallising in large needles, m. p. 59,5 to 60,5°. So far 

 we have not succeeded in identifying the body with any known sesqui- 

 terpene. 



We propose to return to this examination in a subsequent Report. 



According to a British Consular Report 1 ) from Hakodate, the preli- 

 minary experiments of preparing turpentine-oil 2 ) in the Japanese part of 

 Sakhalien have been very successful. The preparation of oil on the largest 

 possible scale is now to be commenced, and 150 000 Yen (over £ 15 000) 

 worth of machinery and apparatus is said to have been ordered for this 

 purpose. The Vice-Consul has forwarded to the Board of Trade in London 

 samples of crude turpentine (known in Sakhalien as Rakuyosho) from 

 Larix dahurica, Turcz. which have been placed on exhibition there. Con- 

 currently with the preparation of turpentine oil the Japanese Government, 

 it is said, intend to take up the manufacture of gun-cotton. 



During the past year the exports of Russian oil 3 ) have been parti- 

 culary large, the figures, according to statistics published by the Customs 

 Administration amounting for the first seven months of the year 1910 to 

 279 300 pud (1 pud = 36 lbs.) of a value of 815 000 roubles, compared with 

 223 000 pud, value 618 000 R. in the corresponding period of 1909 and 

 251 000 pud, value 638000 R. in that of 1908. 



In turpentine oil (d~ 0,8593; a D30 o +26,5°; n D30O 1,4656) 4 ) prepared from 

 Pinus insularis, Endl., a conifer growing in the Philippines, B.T.Brooks 5 ) 

 has found d-«-pinene, which he identified by preparing the nitrosochloride 

 and the nitrolbenzylamine, as well as /?-pinene, the presence of which he 

 demonstrated by oxidising it into nopinic acid (m. p. 121°). The optical 

 rotation of the turpentine oil from Pinus insularis varied in different samples 

 from +13,15° to +27,48°. 



In a paper read before the International Congress on Cold Storage at 

 Vienna, A. Guiselin 6 ) dealt with the application of the freezing process in 



2 ) Chemist and Druggist 77 (1910), 683. 



2 ) Comp. Report April 1910, 102. 



:} ) Organ fur den 01- und Fetthandel 48, (1910), 735. 



*) Comp. Report April 1910, 120. 



*) Philippine Journ. of Sc. 5 (1910), A. 229. 



«<) Chem. Ztg. 34 (1910), 1299. 



