CHAPTEK II 



THE BACTERIOLOGICAL LABORATORY AND ITS FITTINGS 



BEFORE describing the necessary apparatus, etc., for 

 the proper investigation of bacteriological problems, 

 we give a general account of the laboratories of the 

 Koyal College of Physicians, Edinburgh, and those 

 of the Pasteur Institute, Paris : these being chosen 

 as typical examples of bacteriological laboratories. 



The Edinburgh Laboratory. The ground floor of 

 this laboratory, which is situated in Lauriston Lane, 

 contains a workshop, stores, and a room set apart 

 for experimental physiology. The latter is 32 

 feet long, 18 feet wide, and 14 feet high: it is 

 fitted with tables for microscopical work ; a respira- 

 tion apparatus driven by water-power ; recording 

 apparatus ; galvanometer and other electrical ap- 

 pliances ; and sink and draining apparatus. ' On 

 each microscope table, which is painted black and 

 hard varnished, a white band about four inches 

 broad is painted, four inches from the edge of the 

 tables. Some of the tables, instead of being 

 varnished, are covered with plate glass, painted as 

 above on the under surface, and imbedded in felt. 

 On these glass-covered tables the microscope stands 



