REPORT OF THE SECRETARY. 83 
was already provided with a tank of sufficient size, and, by extending 
the exterior wall, ample floor space was secured. The female hippo- 
potamus, which had outgrown her temporary quarters, was trans- 
ferred to the new and much larger cage, and the cage vacated was 
used for a young male that had been obtained at an unusually favor- 
able price. Both animals have access to the outdoor yard and the 
large pool which it contains. A new inclosure and shelter house 
for Arabian camels were built near the sheep and deer inclosures 
and two new yards were added to the series for wolves and foxes. 
A yard 40 by 56 feet, with 10 breeding pens inclosed in it, was 
built to provide for the breeding and study of mink in cooperation 
with the Department of Agriculture. 
During several years predatory animals living at large in the 
park had at times forced their way into the flying cage and caused 
considerable loss among the birds. In order to prevent this the 
guardrail about the cage was rebuilt, using between the posts a wire 
netting with small mesh and at the top a sheet-iron hood. This has 
proved to be effective against both rats and larger vermin. 
A small temporary toilet for men was built near the entrance from 
Adams Mill Road. 
A hot-water heating plant was installed in the office building, 
which had up to that time been heated, rather unsatisfactorily, with 
stoves. At the same time new floors were laid on the main floor of 
the office and some other much-needed repairs made. In order to 
provide for more convenient and economical use of the machines in 
the workshop, two additional electric motors were installed there. 
_ The drinking fountains with attached cups were removed and seven 
“bubble” fountains set in their places. Several of these are fitted 
with faucets for the accommodation of visitors who bring cups or 
desire to obtain water for picnic purposes. 
_ Two tennis courts were constructed in the lower end of the park 
where there is level ground that is not as yet available for other 
purposes. 
The cost of these improvements was as follows: 
Fitting up old elephant barn and building yard_______________________ $1, 325 
(Completing: yard and pool-for tapings: 42s a es oe 300 
NGC ASE WODOEA MINIS CUT AT CTS see ce ek ee els Sek Be 650 
Inclosure and shelter house for Arabian camels________-_-_-_-__ 390 
ACG OMAIE Vara Set One Ww OlVCSe se ate a sr ey Sn a ep 400 
Onarersn late ReCO tl oll Ken sere Rarens 2 ba SS ae iE Te See ee 325 
New guard rail, with foundation wall, at flying cage_______._-_____ 750 
PSHGHEED UL TEGHVETE TV GR HIS! SN ay ir aCe 0 Eee De ee pO ee Me 2 eee 200 
Heating plant and new floors in office building____-___--__-_-- 950 
Additonal motors in: workshops =. foes th 2 cl aed Bae Tne Ses tite |. 350 
Be DDLGarrainehaoMeOUN CAG = se. meee hE ee i ee SO ee 200 
RACV. 6) BEGET are CURT ete ete tee eae ae 8 8 2 eS 150 
