1000 



SCIENCE. 



[N. S. Vol. XII. No. 313. 



face through which the air is drawn and 

 ' tempered'; and secondary coils at the base 

 of the brick walls above mentioned. By 

 means of dampers, which are operated from 

 the several rooms, either tempered or heated 

 air can be discharged into rooms, and thus 

 an abundant supply of fresh air is always 

 assured. This system is completed by re- 

 moving the foul air from the rooms by 

 means of nine-inch circular tiles connected 

 with the hoods, which are placed between 

 the windows, and indeed at every other point 

 where there is available wall space. There 

 is an eight-inch opening near the bottom of 

 the hood, and a five-inch opening near the 

 top, and the tiles terminate above the peak 

 of the roof, each hood being ventilated by 

 an independent flue, and those flues are 

 grouped into brick chimneys. The con- 

 struction of the hoods may be understood 

 from the cut of the interior. There are no 

 pipes for gas, water or waste in the hoods, 

 as these are all carried outside and below 

 the floor of the hood. 



Referring to the floor plans which are 

 here shown, it will be noticed that there is 

 a separate entrance in the east wing to the 

 pharmacy laboratories on the first floor, the 

 laboratory for pharmacognosy, the phar- 

 maceutical lecture room, with preparation 

 room attached, and the model drug store 

 on the second floor. This same entrance 

 leads to the large chemical lecture room on 

 the third floor, which is arranged to ac- 

 commodate 325 students. Attached to this 

 lecture room, is a commodious preparation 

 room, and communicating with it is also a 

 chemical museum. 



In the west wing are situated the large 

 laboratories of the department of chemistry; 

 on the top floor, that for general chemistry, 

 on the second floor, those for qualitative 

 and quantitative analysis and on the first 

 floor, those for organic and physical chemis- 

 try. Each floor accommodates 224 students, 

 one-half working at a time. The basement 



will be used for special research rooms, 

 assay and metallurgical laboratories, and 

 store rooms. 



The offices of the professors of chemistry 

 and of pharmacy and their private labora- 

 tories, are on the second floor, so as to be as 

 convenient as possible to all parts of the 

 building, and on the same floor is a library, 

 a balance room, a store room for the dis- 

 pensing of chemicals and apparatus, and a 

 recitation room which will accommodate 

 seventy-five students. An elevator con- 

 nects the basement stock room with the 

 store room, and extends to the attic, while 

 a similar elevator at the east end accommo- 

 dates the pharmacy department. 



On the first floor is a smaller laboratory 

 for advanced organic chemistry, with a pri- 

 vate laboratory for the instructor, a balance 

 room, lavatory, dark room, a smaller labor- 

 atory for physical chemistry, with an office 

 for the instructor adjoining, and a seminary 

 room. 



The students' tables in the main labora- 

 tories are substantially built of yellow 

 pine, paneled, full one and a-quarter inches 

 thick. Each student is provided with a 

 locker and two drawers, all fastened with a 

 rod which passes through the drawers and 

 is secured by a padlock. At the right or 

 left of each student is a deep sink, twelve 

 inches by thirteen, with a pantr^' cock for 

 delivering water. Underneath a low bottle 

 rack, which stands on the table, a sufficient 

 number of four-way gas cocks are placed. 

 The panel under the sink is movable, and 

 in this opening the gas, water and waste 

 pipes are brought up through the floor. As 

 the gas pipe is led ' in a groove along the 

 table under the movable bottle rack, every 

 pipe is easily reached in case of a leak. 



The two-inch table top is stained black 

 with an anilin dye, which is not readily 

 acted on by acids or alkalies. 



Since the large laboratories are placed 

 one above the other, they can be supplied 



