346 Messrs. M. M. Pattison Muir and S. Sugiura on 



It would appear that the salviol examined was not perfectly 

 pure^ or that this substance is decomposed in some Avay at 

 the temperature to which it was raised, with production of 

 resinous matter. There can, however, be little doubt that the 

 formula Cio Hje really ^-epresents not only the quantitative 

 composition, but also the molecular weight of salviol. 



From the smallness of the quantity of salviol at our dis- 

 posal we have not been able to carry out further experiments 

 upon this substance. 



17. The solid which separated from the higher-boiling 

 portions, chiefly from the fractions boiling from 190° to 220°, 

 has been partially examined by us. 



Analysis. 



I. 0-112 grm. gave 0-324 grm. CO2 and 0-104 grm. H2O. 

 XL 0-129 „ 0-375 „ CO2 „ 0-124 „ HgO. 



Calculated Found. 



forO,oH,eO. , , ^ 



I, 11. mean. 



Carbon 78-94 78-83 78-86 78-84 



Hydrogen 10-53 10-31 10-67 10-49 



Oxygen 10-53 (bydiff.) 10-86 10-47 10-67 



We have not made a vapour-density determination, inas- 

 much as the results of analysis leave little doubt as to the 

 correctness of the fornmla Cjo Hig 0, and the boiling-point 

 prevents the supposition that the molecular weight is repre- 

 sented by a multiple of this formula. 



The specific gravity of sage-camphor is greater than that 

 of common camphor, and less than that of borneol. Yf e do 

 not consider the actual numbers obtained by us yet sufli- 

 ciently trustworthy for publication. 



After several sublimations sage-camphor melts at 184° to 

 186°, and boils at 210°. 



This substance crystallizes in monoclinic prisms, co P, — ??zP; 

 the crystals are generally rounded off" on the prism-edges. 



An alcoholic solution of sage-camphor is without action 

 upon the polarized ray. 



The appearance, smell, and taste of this camphor closely 

 resemble those of the common variety; sage-camphor, how- 

 ever, has a peculiar sage-like odour, which ordinary camphor 

 has not. Sage-camphor is soluble to a very slight extent in 

 water ; it swims upon the surface of water, and exhibits the 

 peculiar rotatory movements of camphor. It is soluble in 

 alcohol (from which solution water precipitates it in the form 

 of white flakes), in chloroform, and in ether. Nitric acid 



