154 HUMANE TREATMENT OF ANIMALS USED IN RESEARCH 
7 . Additional animal holding, quarantine and disease 
diagnosis and treatment areas - Most of~the institu- 
tions examined need supplementary space and equipment 
for the maintenance of animals, their quarantining, and 
for the diagnosis and treatment of their illnesses. 
8. Laboratory animal disease research - The importance 
of research on laboratory animal diseases in relation to 
the problems of diagnosis, prevention and treatment can- 
not be overemphasized. However, the experiences of the 
site survey teams appear to indicate that much of what 
is described as investigation into laboratory animal dis- 
eases is, in fact, little more than casual observations 
of animals. Support should be given to the expansion of 
research into the illnesses of experimental animals. 
9 . Need for research on environmental controls - 
A concerted effort should be made to increase the amount 
and quality of research into the environmental require- 
ments of experimental animals. Such items as humidity, 
air circulation, air filtration and air conditioning 
demand increased research before accurate standards for 
the physical ecology of laboratory animals can be recom- 
mended . 
10. Construction of animal facilities - In many labora- 
tories, the animal care service is housed in quarters 
originally planned for other purposes. This has in- 
creased both the difficulty and the cost of operating 
such facilities. Institutions should be 
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