EUPHORBIA CEJS. 249 



four hours. In nearly all the above cases iodide of potassium 

 and arsenic had been previously used. In nine cases of coryza, 

 good results were obtained in six, the sneezing and rhinal 



r within thirtv-six hours after the 



ff or diminishin 



administration of the drug was begun. The doses were repeated 

 every three or four hours. In five cases of asthma of frequent 

 recurrence and long standing, marked relief was experienced 

 in one case : the dyspnoea soon disappeared and the attacks 

 were always shortened. In the other four cases no good effects 

 were obtained. 



Description. — Annual^ t^airy^ obliquely-erect, with the 



apices recurved; leaves opposite, obliquely-oblong, serrulate; 

 flowers small, numerous, in globular, axillary, shortly -peduncled 

 clusters ; seeds ovoid. The acute leaves, hispid hairiness, and 

 small fruit render this species easily recognizable. 



Chemical composition. 



H 



Bunting [Amer. Journ. PJiarm., 1888, 652), whose analysis 

 shows the presence of the following constituents : wax, caout- 

 chouc, chlorophyll, resin, tannin, sugar, mucilage, carbo* 

 hydrates, albuminoids, calcium oxalate, and other salts. 



Nothing is known of the active principle beyond the facta 

 that it is soluble in water and weak spirit, and insoluble in 

 alcohol of 90^3 ether, chloroform, bisulphide of carbon and oil of 

 turpentine ; it is supposed to be a gum-resin. The watery 

 solution on evaporation to dryness leaves a deep reddish -brown 

 substance, having a vitreous fracture, hardly any taste and a 

 strawberry odour. {Bardet et Erjasse, Form, des Nouv. Memedes, 

 Paris, 1886.) 



EUPHORBIA THYMIFOLIA, Burm^ 



Fig. — Burm. Thes. Zeyl, t 105, /. 2; Rkeede, Hort. 

 MaL x.y t. 33. 



JJab. — Throughout India and Ceylon, Central Asia, and all 

 hot countries, except Australia. 



III.— 33 



