Apprenpix IV. 
REPORT ON THE NATIONAL ZOOLOGICAL PARK. 
Sm: I have the honor to submit the following report on the operations of the 
National Zoological Park for the fiscal year ending June 30, 1907: 
The amount appropriated by Congress for the park during the year amounted 
to $95,000, and at the beginning of the year there was prepared the following 
scheme of operations: 
Recular.amaintenanceexpensese sas 2. fo 1 See ee ee $78, 680 
Collecting, purchase, and transportation of animals__.______________.__._ _ 4,600 
Worksonssmallimammal shouses= 2s a eee Dems ieee oe 3, 000 
Wiorkvon@heating plant]. oa lee ee) Pee ee ee ee ee 1, 000 
REpPArSEtOLaniniralieiNClOS ULES ees eee eee epee ee ee 1, 500 
REDAILS MtO~ ACU AT Sees a ee ee ee ee 300 
Repairs toyshopybuildinglset2 ac). os i oe 8 ee eae 270 
Pigntineishadertrees;andishrups sas.) ase. eee eee eee 500 
Provisionally assigned to laboratory and hospital_____________________ 5, 200 
HL 2) Sn a a Oe eR Nah a de 8 BE NE oh NE og EV 95, 000 
The expenditures for the year practically followed this scheme, excepting in 
the case of the amount reserved for a laboratory and hospital building. Condi- 
tions that arose made it necessary to apply this sum as follows: 
SG araey AT Sik tee eee clea ie) Se ah ee Ral a ES ed Bs 1 SA! boyd ape he ee eee $2, 400 
RepairingsyAdamseMill roadie ss) 52 ales Se eee le ee 1, 100 
SUV Vis Obes eiT Kea at Sees a on Lee ee Ee Beek | rey ee se ee ee ee 645 
Purchasevol animal ss. Vee eee 2 ee eee ee 500 
INGwaroohzon lama nOUSe! vee ee Ee ad eee 280 
I AIntinesthyiN SCA CH = ek eee tS oe Ee ee ee ee 150 
Repairing onecels2222222 2 ee La pelea ey aE See ee cy oe ee 125 
PA ce (Ee a a i eae ee ee ea ee ee 5, 200 
HOUSE FOR SMALL MAMMALS. 
The small mammal house which has been under construction for several years 
was finally opened to the public on November 15. It is found to be much the 
most satisfactory of the buildings erected at the park, being easily warmed, 
quite sanitary, and free from drafts. The method of lighting is unusual, 
there being skylights formed of glass tile in the roof which admit light directly 
over the cages, the central corridor in which the public are admitted being 
lighted indirectly. Screens of ribbed glass protect the animals from the cold air 
which descends from the roof. The cages are readily ventilated by tilting these 
sereens. A plan of this building was published in the report of 1904. 
The outside cages required for this house were not wholly completed at the 
end of the year, owing to the difficulty of obtaining some of the necessary 
material. Work upon them was, however, well advanced. 
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