^>8 CRUCIFERiE. 



homolo 



v^xx vi nijiLc iiiustam auu oi rape, ana is nomologous witn oieic ;iem. 

 Darby (1849) has pointed out the existence of another body , S inapoleic 

 Acid, C'^ff-O', which occurs in the fixed oil of both black and white 

 mustard. Goldschmiedt, in 1874, ascertained the presence also of 

 Behenic Acid, C^PPO' in black mustard. Sinigrin being not altered 

 J S^^ ^x^^action of the fatty oil, either by pressure or by means 

 of bisulphide of carbon, the powdered seed, deprived of fatty oil, still 

 yields the whole amount of the irritating "essential" oil. This 

 important fact has been ingeniously used by Bigollot' for the pre- 

 paration of his mustard paper. 



^ Mustard seed when ripe is devoid of starch ; the mucilage which its 



(Hoffmann). The 



ash-constituents amounting to 4 per cent, consist chiefly r- 



pnates ot calcium, magnesium, and potassium. 



Uses— Black mustard is employed in the form of poultice as a power- 

 iiu external stimulant ; but it is rarelv used in its pure state, as the 



, . -•' — -— -V, M, jjic|jcneu jor lae tame, wnich contains m auuitiu.. 

 White mustard, answers perfectly well and is at hand in every house.^ 



ine essential oil of mustard dissolved in spirit of wine is occasionally 

 prescribed as a hnimorif ^ 



prescribed as a liniment. 



Substitute 

 extens 



Hook 



L.)i^ 



Ppn +ri A^ V^'^i^^^^f ^ throughout India (where B. nigra is rarely grown , 

 ^Inrnl ^ '^^ and generally in warm countries where it replaces B 

 ?h/l^T A 71'^^ ^"^ ^^^ '^"^^ "«e«- Its seeds constitute a portion of 

 exnnT.i • .1 "■''^'' ^' '^^ "^^y infer from the fact that British India 

 700 tonf '"^ ^^\>'ear 1871-72, of "Ilustard seed," 1418 tons, of which 

 Bi^Zl^^'^^ T'^ ^'^ *^" "^^i*^^ Kingdom, aAd 51G tons to France. 

 noSwf of n'^n^ ^-^^^ in the south of Russia and in the steppes 

 in the il nf ! M ^""t^T '''^^"^ it ^VV<^^rs to flourish particularly vvell 

 blishment ll • ^} ^^^'P^^^ i^ the Government of Saratov, an esta- 

 thl s^rt of mn J« f ^ '''''' ^^'' beginning of the present century where 

 annually The t^ ^'T''^ ^°^' "^^ '^ ^^^^ ^^^ent of 800 tons of seea 

 cub arv'and Ldf.-' ?^^' ^ ^""^ ^^^^^^^^ P^^^^^er employed both for 



SEMEN SINAPIS ALB.E 



Se4 



Thi.. plZlfSj'^^Z^^^^ Hook. f. et Th. {Sinapis alba L 

 and W stem Ash A. ?• *' ^^' «^^^« ««"thern countries of Europe 



tern Asia. According to Chinese authors^ it was introduced 



n.! i^if ^F ^'^o"'-"q>'^l>//.!^f5 !uoi. ,. • ^^^'^ '^ however kept for those who care to 



matle by the large mauuf act rt. f^- '^ purchase it. 



ButthelowerandcheaperqSiesmSpt- ^'^f'?." ^f British India, Calcutta, 1872. O-- 



the same firms contain flour turm.^o ^, Bretschneider, 5i« Ji/ o/ CA inese Bom- 



capstcum. Unmixed flour ormackMui »^<>-^^. 1870. 17. ' ^ "^ 



