S6 BULLETIN OF THE LABORATORIES 



forge stands in an adjoining room. Tlie next room is provided for cer- 

 tain kinds of electrical testing connected with the study of dynamo- 

 electric machines. It is not yet fully equipped. Near the other end 

 of the basement is a small room about 9x7 feet, surrounded by heavy 

 stone walls and projecting back into the earth. This construction makes 

 its temperature very constant and it is to be used as an even tempera- 

 ture vault for carrying on work which needs to be done at a constant 

 temperature. 



The Department of Chemistry occupies the west wing 

 of the building. It contains eight rooms, none of them directly con- 

 nected with rooms of any other department, so that the odors peculiar 

 to a chemical laboratory do not give trouble elsewhere. The lecture 

 room and beginners' laboratory is a combination room on the first floor. 

 It is 36x33 feet in size, provided at one end with a long demonstration 

 desk, fume-hood, apparatus cases, sliding chart frame and blackboards, 

 in the centre are seats with writing arms for about forty students, and on 

 the remaining three sides 24 working desks, each with water, gas and 

 chemicals, also two more hoods and reagent cases. Electric wires bring 

 current at low potential (six volts) for electrolytic work, from the bat- 

 tery room below. The analytical chemistry occupies a room on the 

 second floor, 36x18 feet. It has a demonstration desk, working desks 

 equipped with water, gas and reagents for 24 students, fume hoods, 

 drying ovens, steam coils, apparatus for distilled water, etc. Adjoin- 

 ing this is the organic laboratory, 20x14 feet, equipped with desks, 

 sinks, hood, etc., especially arranged for organic synthesis. It is used 

 also by advanced classes in water analysis, gas analysis, electro chem- 

 istry, etc A fine set of Hempel apparatus for gas analysis has been added 

 recently, also Becknian's apparatus for determining molecular weights 

 by the lowering of the boiling i)oint of sohitions. Both these rooms have 

 permanent connections for 6-volt current from the battery-room and an 

 auxiliary storage battery is kept in this room. Beyond is the balance 

 room, 15x19, containing four analytical balances and several for other 

 pur[)Oses. A chemical stockrooni, 15x5 feet, opening into both the 

 analytical and organic rooms, is well furnished with chemicals. It can 

 be shut up perfectly dark, and, is therefore used by qualitative students 

 for work with the chemical spectroscope. For general supply there is 

 a larger stockroom, 2 ix 10 feet, in the basement. .Adjoining this is a 

 fire-proof acid vault. 12x8 feet, for storing large (|uantities of acids, 



