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REPORT OF THE DIRECTOR OF THE 
LABORATORIES. 
To THE DirEcToR-IN-CHIEF : 
Dear Sir: T have the honor to submit the following report 
for the period ending January 1, 1g00 
Upon the assumption of my duties July 1, 1899, attention 
was turned to the organization and equipment of the labora- 
tories. The space placed at my disposal included thirteen 
rooms, which have been designated for special purposes in 
such manner that a storage room, preparation room, and con- 
stant temperature chamber are provided on the ground floor 
of the Museum Building, and an embryological laboratory, 
morphological laboratory, office, class room, physiological 
laboratory (skylighted), physiological dark room, chemical 
preparation room, chemical laboratory, photographic operat- 
ing and balance room, and photographic dark room are on 
the third floor. 
Every student in the institution has some special problem 
under investigation, and the apparatus purchased has been 
secured for meeting the individual needs of these workers; a 
plan which will be followed in all additions to the equipment, 
and which makes the provision and duplication of demonstra- 
tion and illustrative material unnecessary. Designs have 
been made for several pieces of apparatus made necessary by 
this method of procedure, and some of these are now in proc- 
ess of construction. The following instruments, apparatus 
and material have been purchased by means of an appropria- 
tion made by the Board of Managers: 
Three Bausch and Lomb compound microscopes, complete with 
1/12 inch oil immersion lens; 3 compound microscopes, Leitz, 
complete, with 1/12 inch immersion lens; 3 B. and L. dissecting 
microscopes; 2 paraffine baths, complete; 1 torsion balance; 1 mi- 
crochemical scale; 1 Jung microtome, complete with all acces- 
sories; I Jewell water still, No.1; 1 New York photographic 
studio outfit, complete; 1 telephoto cycle Poco camera with Gocrz 
lens, Ser. III., together with a set of dark room and general pho- 
