I 



The main-building is composed of basement, ground- 

 floor, first floor and garret. The laboratory occupies 

 the basement, the ground-floor and part of the garret. 

 The first floor is reserved as a private residence for the 

 Chief of the laboratory. 



The two plans annexed will show the size and ar- 

 rangement of the premises. From the main staircase 

 (1) you pass through the corridor (2) into the Chemical 

 Laboratory (4) adjoining the Weighing-room (5). From 



15 METER 

 H 



this corridor there is another entrance into the Bac- 

 teriological Laboratory (6). In the wall of the latter, on 

 the east side, is the entrance into the Incubator-room (7); 

 another door leads into the small Sowing-room (8) in 

 which the flasks are inoculated and, by means of a 

 trapdoor, passed directly into the Incubator-room. From 

 the Bacteriological Laboratory you pass into the room 

 (9) where the media are prepared, and where the smaller 

 and larger autoclaves and other sterilising apparatus are 

 placed. Through an anteroom (10), to which there is 

 also an entrance from the back staircase (11), you reach 

 the so-called Research Laboratory (12), which is de- 

 signed for work with such infectants as must be care- 

 fully kept away from the rooms in which antidiphlheric 



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