16 ORGANIZATION AND BUILDINGS. 



istry, with the machinery for carrying on commercial processes 

 on a laboratory scale; No. 1 for photometric work; No. 3 for 

 physical chemistry and physics; No. 5 for the same purposes 

 and for the adjustment of weights and measures; No. 7 for 

 assaying and mineral work; No. 9 for a balance room,, and No. 11 

 for organic combustion. On the second floor and in the same 

 order No. 114 is the balance room for the upper floor; No. 112 for 

 the use of the ornithologist; No. 110 is a chemical laboratory fitted 

 for work with soils, water, and organic chemistry; No. 108 a 

 chemical laboratory fitted for all classes of work; No. 106 for 

 spectroscopes and instruments of precision; No. 104 for sugar, 

 foods, and physiological chemistry; No. 103 for mineral analysis; 

 No. 105 for general chemical work of all classes, and No. 107 as an 

 office for the Superintendent of Government Laboratories. The 

 three central rooms to the front Nos. 109, 111, and 113 are for 

 the purposes of the library, Nos. 109 and 113 being stack rooms and 

 No. Ill the reading room, stack room, librarian's office, and general 

 library. Passing to the rear on the ground floor and turning to 

 the left in the power house, Nos. 50 and 51 are for cold storage, 

 No. 52 for the packing and shipping of vaccine and serums, No. 53 

 for the preparation of serums, No. 54 as a room for the preparation 

 of culture media for the serum laboratory, No. 55 as a boiler room, 

 No. 56 for the gas-plant generators, No. 57 for coal, No. 8 for a 

 crematory, No. 59 for the engine room, and No. 60 for cold- 

 storage machinery. No. 153 is the office of the Director of the 

 Serum Laboratory and Nos. 150 and 152 are laboratories for bacterio- 

 logical and pathological work of the serum laboratory. To the rear 

 of the entire structure are placed the animal hour \ including 

 buildings for the storing of guinea pigs and rabbits, with a wing 

 for work on bubonic plague and contagious diseases; a stable 

 for the serum horses, one for the vaccine calves, and one for the 

 storing of monkeys, dogs, and goats. 1 The list given above com- 

 pletes a statement of the purposes for which the rooms were 

 originally intended, but the detailed description which will be given 

 below makes it evident that the building is really sp constructed as 

 to give it great elasticity in the class of work which can be con- 

 ducted therein and in providing for a large increase in the number 

 of workers. 



1 See Pis. III-VI. 



