24 
stance. This consists in the inclusion of a large ship- 
ment of new animals which was far below par so far as 
hardiness is concerned for these gardens. The mortality 
for this shipment, which consisted in greatest part of 
small aves, shipped from San Francisco during July and 
August, was around 33% in so short a space of time as 
six months. The last line in the above table, marked 
'^1918 pro rata" indicates what the figures would be if 
this shipment were disregarded both as to '^deaths" 
and animals exhibited." A scrutiny of the individual 
orders shows no special increase of mortality which would 
point to special disease in special groups. This year 
has been free from large special epizootics. 
About the average number of important animals has 
been lost this year. The following stand out particularly : 
The rhinoceros had a suppurating skin disease which 
had lasted for about a month. At autopsy it showed a 
lobar pneumonia in addition. A female Yak died with 
gastro-enteritis. Two tigers, one with pulmonary tuber- 
culosis and the other with a tumor (endothelioma) of 
the pleura. Four California hair seals, two of which 
were affected by the same kind of peculiar mould {v. 
infra), the third of enteritis and the fourth with an 
ulcerated thigh. 
The following list gives statistics as to both mortality 
and distribution of disease for the past year. It will be 
found not to tally with the records upon the table, as 
some specimens have died from injury and some were 
decomposed. Moreover, in many instances animals are 
included in the figures of more than one heading, since 
lesions of importance may have been found in more than 
one of the anatomical systems. It is seldom the case 
that only one of the systems is sufficiently affected to be 
the only cause of death. 
