162 HUMANE TREATMENT OF ANIMALS USED IN RESEARCH 
TABLE 7 - DATES OF MOST RECENT RENOVATION OF ANIMAL FACILITIES 
Date of Most Recent 
Renovation 
Percentage of 
Institutions 
No renovation 
20.7% 
1946 
1.9% 
1948 
1.9% 
1953 
1.9% 
1955 
1.9% 
1957 
1.9% 
1958 
15.1% 
1959 
11.3% 
1960 
30.2% 
1961 (First Quarter) 
13.2% 
TABLE 8 - PERCENTAGE OF TOTAL RESEARCH SPACE OCCUPIED BY ANIMAL HOUSING 
Type of Institution 
Average Space 
Veterinary Schools 
- 
56.8% 
Medical Schools 
- 
15 . 1% 
Private Laboratories 
- 
33.6% 
Hospitals 
- 
24.2% 
- 35 ' 
