52 BIOLOGICAL SURVEY OF 



LABORATORY 



The laboratory is an asbestos-shingle covered building 

 something- over 50 feet in length and 20 feet wide; the sides 

 are almost entirely plate glass, so that one may work in any 

 part of it, and to allow sufficient light to go through to the 

 aquaria. 



The building is on concrete piers carried through to the 

 ledge; the floor beams were built extra heavy and cross 

 braced, and upon them was placed a very heavy floor so that 

 there is no vibration which can affect the microscopes. This 

 floor was covered with rubber cement and on it layed the 

 heaviest kind of battleship linoleum; therefore, it may be 

 run over with a mop and fresh water and will dry out, and 

 not stay damp and smelly as is the case with wooden floors. 

 At one end are appropriately fitted shelves for glass, a sink 

 with ample drain boards, and racks for apparatus. 



The two lower panels of the door are hinged so that they 

 may be opened, and in addition to the ventilators shown in 

 the sketch there are three small copper ventilators. Leaving 

 these panels in the door open permits air to constantly cir- 

 culate and we have thus never had trouble from dampness 

 due to the aquaria. 



One end of the laboratory is partitioned into two rooms, 

 one of which the Director uses as his office, and in which 

 specimens are kept on shelves so arranged that they may be 

 referred to easily. The other room is used as a library and 

 is where writing, drawing, etc., has been done. 



The windows are furnished with shades so that if the 

 light is too strong they may be drawn and a microscope lamp 

 used. On one side they draw from the bottom up and on 

 the other from the top down. 



Around the laboratory at the proper height is a continuous 

 workbench so that microscopes and other apparatus may be 

 moved to convenient locations, and in addition there are 

 separate small, movable tables, built with a bookrack so that 

 anv worker mav have his literature close at hand. 



