1236 



Journal of Applied Microscopy 



which were insisted on, and which there have been thus far no reasons to 

 regret. They are : hardwood floors, steel ceiling for the lower room, and walls 

 devoid of plaster. Hardwood floors were adopted more for economy than 

 elegance, maple being preferred to yellow pine as it is less apt to splinter with 

 hard usage, even though it is given much less care. The floors are well laid, 

 stained, oiled and varnished. 



Experience has shown that plaster ceiling is liable to fall at any time should, 

 through accident, which is not rare, the floor of the room above become flooded 

 with water. Plastered walls, unless painted, become soiled very quickly, and are 

 difficult to clean ; and if painted, this must be repeated from time to time, thus 

 incurring constant expense. The objections that bare brick walls reflect less 

 light, and favor the condensation of moisture upon them, are readily met by the 

 use of light colored, smooth brick, and laying them with an air space between 

 external and internal walls. 



Fig. 



-Lecture room, (s) seats; (t) instructor's table. 



The first floor is occupied by a lecture-room 52 x 56 feet, to which students 

 gain access directly from without through a vestibule doorway, while the instruc- 

 tor may enter behind the lecture-table directly from the laboratory hallway, or, 

 by a door to the left of this, from the adjoining preparation room. (See Figs. 

 1 and 2 for general arrangement.) 



The seats, with a capacity of 310, extend straight across the room, rising on 

 8- to 9-inch steps from the lecture-table to within 9 feet of the opposite wall. 

 They are comfortable church pews of oak, with antique finish, 2' 8" from back 

 to back, and each one subdivided by cast-iron arm rests 19" apart ; the object of 

 this being to ensure sufficient room for comfort to each individual, and also to 

 discourage any tendency on the part of the occupants to lounge. There is a 

 center aisle of 2' 8", and an aisle 3' 6" in width along each lateral wall. The 

 ceiling, 17' 6" high at the point occupied by the instructor's table, is of paneled 

 steel, painted with zinc paint to match the lighter parts of the walls, which are 



