88 NEW YORK ZOOLOGICAL SOCIETY 



the Boulevard, and from the Rocking-Stone Hill to the Buffalo 

 Entrance, and of the entire concourse and approach, making 

 altogether about 5,776 square yards. The total cost of this 

 improvement was about $4,000.00. At the same time, a flight 

 of concrete steps and a walk was built leading up to the Rocking- 

 Stone from the south. 



In connection with the new Bear Dens we constructed a 

 flight of concrete steps with bronze railings, 21,000 square feet 

 of concrete walk, and 1,800 square feet of tar-macadam walk, 

 at a total cost of $2,050.00. 



Three of the small Bear Dens for tropical bears were 

 enclosed for the winter, and a small electric heating apparatus 

 was installed in each sleeping-den, at a cost of $400.00. This 

 rendered it possible to remove those bears permanently from 

 the Small-Mammal House. 



The unsatisfactory condition of the sewer from the Ele- 

 phant House, which again was com_pletely blocked, compelled 

 the building of an additional manhole in one of the yards to a 

 depth of 12 feet, at a cost of $150.00. 



In order to shelter the musk-oxen at night, and keep them 

 from fighting when housed, four stalls with concrete flooring 

 were built in the Musk-Ox Shelter House, at a cost of $150.00. 



The work on the Beaver Pond, which was started in the 

 previous year, was brought to satisfactory completion by re- 

 moving the black mud down to the clay bottom, and paving the 

 entire pond bottom with broken stone, leaving unpaved only 

 a small area from which the beavers might gather mud for 

 their building operations. The south end of the surrounding 

 ground was raised several feet above the original grade, and 

 a new water supply was installed. This pond is now for the 

 first time in satisfactory condition, and it will remain so, per- 

 manently. The cost of all the work on the Beaver Pond amounted 

 to $2,300.00. 



In front of the Pheasant's Aviary a series of vine sup- 

 ports of steel and wire were erected. These supports will 

 answer the double purpose of shading three sides of the Aviary 

 by the foliage of climbing plants, and at the same time it will 

 prevent the plants from rusting the wire netting and iron work 

 of the cages. The cost of this work was $150.00. 



The sidewalk on the Boston Road from the Boat-House 

 to the Buffalo Entrance, which always had been in a rough and 



