23 



case the resin was transparent, brittle, dai-k-brown, and soluble in 

 hot alcohol only with difficulty, but easily soluble in ether and 

 chloroform.] 



Bases, Organic = Alkaloids. 



BasiliCUIU Stearopteil = C20 H22 Oo. Obtained by the 

 distillation of Ocimvim Basilicum with water. The oil floating 

 on the water solidifies almost entirely to a white, crystalline mass. 

 When recrystallised in alcohol it appears in quadrangular prisms 

 of a faint odour of the oil ; when recrystallised in water, in 

 tetrahedrons almost devoid of taste ; it is neutral, dissolves little 

 in cold, readily in hot water or alcohol, in six parts of ether, also 

 in acids and alkalies. Isomeric or identical with the hydrate of 

 oil of tur])entine. 



Bassia Fat, from the seeds of Bassia butyracea, B. longifojia 

 and B. latifolia. Yellowish, slowly decolourised by light, of the 

 consistence of butter and of 0'9.58 spec, grav., fuses at 27° to 

 29°, dissolves little in alcohol, readily in ether; contains olein, 

 myristin, palmitin and stearin. (The last-mentioned was eiTone- 

 ously distinguished as Bassic acid). 



Bassorill = C12 Hio Oio. Ingredient of Bassora-gum, Traga- 

 canth and similar gummous exudations of plants (cherry-gum, 

 anacardia gum), insoluble in water and swelling in it; can only 

 likely be object of phytochemical analyses in exudations of the 

 above and similar kinds. When such an exudation is treated 

 with cold water, it swells up considerably and dissolves partially ; 

 by straining and repeatedly tx-eating with fresh water, the soluble 

 part is removed, but the remaining portion contains, like the 

 vegetable mucus, always more or less lime-compounds which can 

 only be removed by repeatedly treating with water containing 

 hydrochloric acid. When dry, the Bassorin is yellowish-white, 

 solid, brittle, transparent, without taste, swells in cold water to a 

 transparent jelly, without dissolving, but dissolves by continued 

 boiling to a gummous liquid, yields with diluted sulphuric acid 

 gum and sugar, with nitric acid, mucic and a little oxalic acids. 



Bay Oil, obtained by distilling the berries of Laurus nobilis 

 with water. Greenish-yellow, of a thickish consistence, of the 

 odour of bay-berries and turpentine, of faintly acid reaction, and 

 0'932 density. It consists of two jiolymeric hydrocai-bons, 

 C20 Hie, boiling at 164° and of 0-908 density, and C30 II24, boiling 

 at 250° and of 0'925 density, and of lauric acid=:C24 H24 O4. 



Buy Oil from Ouiana. Obtained by incisions, from the stem 

 of an unknown tree. When rectified and desiccated, colourless, 

 of the smell of oil of turpentine and lemons, of aromatic pungent 

 taste, of 0-864 density, boils at 150° to 163°. 



