TOD Materia medica. 



der may be kept a considerable time, with- 

 out losing its strength. 



GINSENG. A moderately warm aroma- 

 tic root, highly esteemed by the Cliinese, 

 but in this country scarcely ever employed. 



GLAUBER'S SALT, or VitriolatedlSla- 

 iron. This neutral salt, is composed of the 

 vitriolic acid and soda, or the mineral al- 

 kali, which is now termed natron, in the 

 London Pharmacopoeia. Li the human sub- 

 ject it is an efficacious purgative ; but in 

 the horse extremely inconvenient, on ac-' 

 count of the large quantity required to pro> 

 duce a laxative effect . 



The dose is about a pound. 



GLYSTERS. Thfs form of medicine is 

 extremely useful, thotigh much neglected. 

 It is unnecessary to describe the mode of 

 administerino' them, and with n^spect to the 

 various medicines employed in this way, I 

 must refer the reader to the Pharmacopoeia. 

 (See GJystersJ 



The best instrument for the purpose, is a 

 polished pewter tube, about one foot in 

 length, tiie bore about half an inch in dia- 

 meter ; one end ol this tube is to be so made 

 that a bladder may be securely fastened to 



