MATERIA MEDIC A. 115 



fruits, is smoked in India, as is CHARAS, the crude 

 resin. All these products are narcotic.* 



Humulus lupulus, L., the HOP, a British species,yields 

 the bitter principle Lupulin, C 32 H 50 O 7 , first isolated in 

 1863, together with wax and resin (see p. 61, supra). 

 Hops warmed in pillows form a useful sedative, and an 

 extract of the bitter principle is now largely used as a 

 tonic drink.-f- 



ULMACE.E. 



Ulmusfulva, Michaux, the SLIPPERY ELM of North 

 America, contains in its inner bark a mucilage which 

 causes it to be powdered for poultices. J 



EUPHORBIACE.E. 



Euphorbia resinifera, Berg, was described in 1863 

 as the source of the once used GUM EUPHORBIUM, 

 which is still employed as a vesicant and in veterinary 

 practice. It is a native of the lower slopes of the 

 Atlas Mountains. 



E. pilulifera, L., the AUSTRALIAN ASTHMA HERB, 

 has been lately recommended in bronchial cases. || 



E. Drummondii, Boiss, yields the anaesthetic 

 DRUMINE, an alkaloid similar to Cocaine.^ 



Croton Eluteria, Bennett, in 1859 was shown** from 



* Ibid.^. 493; IMd.)\V) pi. 231. Cooke,' Seven Sisters of Sleep.' 

 f Bentley and Trimen, iv, pi. 230. 

 i Ibid.) iv, pi. 233. 



Ibid., iv, pi. 240. ' Pharmacographia/ p. 502. 

 * Pharm, Journ./ xvii (1886), p. 144. 

 Christy, ' New Commercial Plants/ No. 10, p. 95. 

 ** ' Proc. Linn. Soc., Bot./ iv. (1860), 29, and Daniell, 

 ' Pharm Journ./ iv (1863), pp. 144, 226. Bentley and Trimen iv, 

 pl. 238. 



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