164 MATERIA MEDICA. 



are recommended as a topical application 

 in cutaneous complaints, and for destroying 

 those animalcules which are sometimes ire- 

 nerated upon the horse's skin. They are 

 used either in the form of a decoction, or 

 finely powdered and mixed with train oil, 

 turpentine, &c. 



STEEL. The medical properties of steel 

 are not supposed to differ from those of 

 iron, (See Iron.) 



STORAX. The common and the strain- 

 ed storax are the only kinds keptin the shops. 

 The former is in the form of saw dust, inter- 

 mixed with resinous matter of an agreeable 

 odour : the latter is extracted from this dust, 

 and is far more pure ; indeed it is the only 

 kind that can be employed for medical pur- 

 poses. In its medical pi-operties-it fiearly re- 

 sembles balsam of tolu, anxi may be given 

 in obstinate coughs with squill, opium, and 

 soap. 



The dose is about two drams. 



ST 5f PICS are medicines wfiich con- 

 stringe the blood vessels when wounded, so 

 as to stop an effusion of blood. Many pre- 

 parations have been recommended for this 

 purpose ; but when the size of the wounded 



