August 12, 18S7.] 



SCIENCE. 



83 



flues open directly into the air ; the smaller ones, into the space 

 under the roof, which communicates with the air by means of the 

 small ventilating-tower on the rear part of the roof. On each 

 floor, built into the space between the large flues, and opening into 

 them, are large hoods accessible from both sides through sliding 

 glass doors. 



Extending along the side-walls — and this is the case in every 

 laboratory-room in the building — is a table, furnished with gas and 



for the use of those students who have had some preliminary train- 

 ing, and has accommodations for thirty-two workers. Opening 

 from this laboratory at opposite corners are two rooms equal in 

 size, — the one a balance and apparatus room ; the other the private 

 laboratory of the associate professor. Beyond these, on opposite 

 sides of the south corridor, are a small lecture-room and a special 

 laboratory. In this laboratory the chemical work of the investiga- 

 tions undertaken by the e.xperiment-station will be carried on. 



I'^iW.'S 





"frvs 



Fig 3. 



water, drawers and cupboards. These tables carry the smaller 

 hoods, covering the sand and steam baths, and opening into the 

 small flues. Space is also afforded here for such operations as re- 

 quire more room than the ordinary work-table gives. 



Passing through the general laboratory, and ascending the stair- 

 way at the north end, we find ourselves in the north hall of the 

 second floor (Fig. 3). On our right is a small room for blast-lamps 

 and combustions. On the opposite side of the hall is the office and 

 study of the associate professor of chemistry. 



Passing on, we enter the qualitative laboratory. This is intended 



Ascending the stairway at the end of the corridor, we reach the 

 corridor of the second floor (Fig. 4). At our left is the quantitative 

 laboratory, with accommodations for twenty students. Communi- 

 cating with it is a small dark room for the storage of standard solu- 

 tions. 



Passing through the door in the north end of the room, we enter 

 the main lecture-room. This room has a raised floor, placed at 

 such a pitch that the top of the lecture-table can be seen from all 

 parts of the room. It is furnished with Andrews's patent lecture- 

 chair, and will comfortably seat two hundred people. 



