10 MATERIA MEDiCAr 



pfofoundly skilled in the art of farriery, td 

 stop every crevice they can find in the 

 stable, so that pure air is with difficulty 

 admitted ; and the noxious vapours arising 

 from the litter, from perspiration and re- 

 spiration, are in great measure confined. 

 Horses thus situated must necessarily suffer 

 in a greater or less degree ; and though the 

 air may not be so contaminated as so occa- 

 sion fatal diseases, it is sufficiently so to de*. 

 bilitate the constitution, and tliereby lay a 

 foundation for numerous complaints, as 

 well as to create local diseases, such as in- 

 flamed eyes, obstinate coughs, and perhaps, 

 moonblindness as it is termed. Horses that 

 have weak eyes and lungs are sure to be in- 

 jured by this treatment : another inconve-. 

 iiience arising from it is, that of rendering 

 a horse very susceptible of cold. Venti' 

 lation is, therefore, an object of great impor- 

 tance in the construction oF stables ; and is. 

 most conveniently done by making proper 

 apertnres in the ceiling, communicating 

 wit') the external air; and, by means of 

 winJ(..ws, adajjte:! to the form and size of 

 the stable. It is a bad method of Ventilation 

 to leave the upper part of the racks open^ so 



