50 Report of Schimmel § Co. 1922. 



(odour and density of corresponding fractions, no nitrosochloride being obtained), Z-borneol 

 (m. p. 202 to 203°; acetate, m. p. 29°; phenylurethane, m. p. 139°), bornyl acetate and 

 other borneol esters, ^-camphor (oxime, m. p. 119°; semicarbazone, m. p. 235 to 236°), 

 cineole (resorcinol compound; iodole derivative, m. p. 106 to 107° instead of ill to 112°), 

 salicylic acid (colour reaction with ferric chloride), aldehydes (presumably two, Schiff s 

 reagent), formic, acetic, butyric (?), and isovaleric acids (silver salts), a non-volatile acid 

 or a lactone, and a blue constituent of high b. p. (145° at 15 mm.). 



Monarda Oils. — A series of methoxyl estimations in monarda oils undertaken 

 partly with unchanged oils, partly after removal of the phenols in the hope that this 

 constant would prove characteristic, has been published by D. C. L. Sherk 1 ). In the oils 

 of Monarda punctata, the content of methoxyl amounted to 0.11 to 0.36 per cent. The 

 non-phenolic parts of the oils differed in their methoxyl value hardly from the original 

 oil. Hence, on the separating of the phenols a methoxylated body must have dissolved 

 in the aqueous alkali. Such a body is the monomethyl ether of thymohydroquinone, 

 since the dimethyl ether and thymol methyl ether, otherwise constituents of the oil, 

 are non-phenolic bodies, i. e., insoluble in alkali. Sherk was able to prove that the 

 alkaline extract of an oil from Monarda fistidosa contained, a pale reddish oil with 

 1.14 per cent, methoxyl and leaving on distillation a tarry residue with 0,95 to 1,17 per cent 

 methoxyl. The part of the oil extracted from the alkaline liquid by means of ether 

 contained, in addition to carvacrol, thymohydroquinone. 



From an oil of Monafda punctata, the thymol of which had been removed for 

 the greater part by freezing, Sherk obtained crystals of thymohydroquinone and a 

 black, tarry residue with 0.61 to 1.48 per cent, methoxyl. This residue consisted for 

 one-third of thymohydroquinone, m. p. 141°, which was isolated therefrom by fractional 

 distillation. 



It is well-known that the essential oils obtained by redistillating the distillation- 

 water of essential oils show properties differing from those of the principal oil. In the 

 most cases, especially the specific gravity of the latter oil is lower than with the 

 "water oil", as the water-soluble constituents of essential oils show, as a rule, a higher 

 density than the bodies insoluble in water. As we gather from a paper by E.R.Miller 2 ) 

 on "Redistillation of aqueous distillates resulting from the production of volatile oils", 

 the specific gravity of the principal oil from Monarda fistulosa, L. amounted to 0.9280, with 

 the "water oil" of the same plant, to 0.9700. Wormwood oil, however, behaved according 

 to Miller, differently, since the "water oil" was lighter owing to the content of thujone. 

 The yield of wormwood "water oil" ranged between 6 and (?) 37 per cent, of the aqueous 

 distillate, according to the maturity of the plants under investigation. 



Oil of Mosla grosserata. — Y. Murayama 3 ) discovered in the oil of Mosla grosserata, 

 Maxim., a new terpene, moslene (comp. p. 50 of this Report). 



> Oil of Mosla Hadai.— As we hear from Asahina, the oil*) investigated some years 

 ago by Y. Murayama did not come from Mosla japonica, Maxim., but from Mosla Hadai 

 Nakai 5 ). (Comp. also lower down.) 



x ) Fritzsche Bros. Fellow, 1919/20. Jonrn. Americ. pharm. Assoc. 10 (1921), 417. — 2 ) Midland Druggist 

 and pharm. Review 54 (1920), 146. — 3 ) Journ. pharm. Soc. Japan 1921, No. 475. — *) Comp. Report April 

 1J)10, 78. — 6 ) The Index Kewensis does not mention it up to 1910. 



