205 



ORGANIC COMPOUNDS. 



HYDROCARBONS. 

 PARAFFIN OR MARSH GAS SERIES. CnH Jn+ , 



a. Solid paraffin, from turf and peat, crude. 



b. Ditto, purified. 



c. Liquid paraffin, from seaweed, crude. 



d. Ditto, purified. 



e. Barbadoes tar, genuine. 

 /. Ditto, spurious. 



g. Rangoon petroleum. 



h. Petroleum from Zante. 



Note. This specimen was "collected from a pitch well in the south- 

 eastern part of the island of Zante, on Sept. 13, 1818, by Wm. Allen, 

 F.B.S., first president of the Pharmaceutical Society of Great Britain, 

 and was presented to the Society by his executors in 1852." See Life of 

 William Allen, Land., 1846. 



t. Pennsylvanian petroleum, crude. 



j. Ditto, purined. 



Je. Shale grease. 



I. Shale spirit, crude. ^ 



m. Shale residue. 



Note. The above paraffins are none of them of definite composition, 

 bat consist of a mixture of various members of the series typified by the 

 formula CuHzn+a. See Fownet, Chemistry, p. 548. 



TERPENE SERIES. CnH^.^ 



389. TEBEBENTHENE. 



a. French oil of turpentine. 



Note. This specimen turns the plane of polarisation to the left. It 

 was obtained from Pinus Pinaster, Sol. 



390. AUSTRALENE. (Austro-terebenthene.') 



a. English oil of turpentine. 



Note. This specimen rotates the plane of polarisation to the right. 

 It was prepared from the turpentine of Pinus paliutris, Mill, and Pinut 

 Tada, L. 



391. TKREBENE. 



a. Colourless liquid. 



Note. This specimen has no action on polarised light. It was pre- 

 pared from oil of turpentine by treatment with strong sulphuric acid. 



392. TEBPIN HTDRITE. C 10 H 16 , 3H 3 O. (Turpentine Camplu t ; 



Hydrate of Turpentine 0t7.) 

 a. Brown rhombic crystals. 



393. TEBPIN. C 10 H ltt , 2H 2 0. 



