22 ORGANIZATION AND BUILDINGS. 



from the cold-storage equipment and are built in two sections, so 

 that one portion may be kept at any temperature within the capacity 

 of the plant, whereas the other may be regulated at 20 to 25. The 

 incubators are in the form of large boxes with a central door and 

 shelves around the sides ; they are 7 feet long and 3 feet wide, and 

 are heated by Bunsen burners. Electric heat for the incubators is 

 planned to be installed in the future, but it can not be operated 

 successfully until after the hospital buildings are constructed, 

 because it is not intended to run the power plant day and night 

 until the necessity arises. The incubator rooms also have in them, 

 attached -to the walls, the smaller thermostats for heating paraffin 

 for sectioning and smaller incubators for varying temperatures. 



It is not intended to have any great number of smaller animals 

 for experimental purposes inside of the building, and for conven- 

 ience the house for guinea pigs and rabbits has been placed imme- 

 diately to the rear of the biological wing. It consists of two large 

 rooms, together with two smaller ones for operating, and a vestibule. 

 One of the large rooms is to be devoted to the storage of animals 

 and to the keeping of those which are under observation but not 

 infected with dangerous diseases. The other large room is com- 

 pletely isolated and screened and is intended for work with plague, 

 smallpox, cholera, and other diseases which may become dangerous 

 and which it is not safe to handle unless every precaution is taken. 



On the ground floor of the biological wing one room is set aside 

 for the mechanic. This is provided with power and a complete 

 equipment of lathes, shapers, drills, grinders, and tools, so that 

 the laboratories will be in a position to have their instruments 

 made and repaired on the grounds. 



The rooms of the chemical wing show much greater variations 

 among themselves than do those of the biological portion, because 

 successful chemical work needs a greater variety of apparatus and 

 facilities. However the distinction between the biological and 

 chemical laboratories of the present time is not so great as it 

 formerly was, because biologists are now carrying their investiga- 

 tions into fields more closely allied to chemistry. Therefore the 

 general desk arrangement of the chemical rooms is similar to that 

 of those devoted to biology. They each contain a window desk, 

 which is 36 inches high and 30 inches wide, built without the 

 central small sinks but in their place equipped with a trough, 

 sink, drip board, gas, water, and vacuum for general chemical work. 



