436 . DR. p. CHALMERS MITCHELL ON LONGEVITY AND 



durations makes it clear that they have been subjected to adverse 

 conditions. Throughout the period to which the figures relate, 

 and in a majority of cases since, the conditions of their housing 

 have been determined by considerations of temperature rather 

 than of fresh air. The conclusion is inevitable that these con- 

 ditions are adverse. This is not the place to discuss the 

 construction of houses for animals, but it may be vi'ell to say 

 that there is no reason to suppose that the other extreme, com- 

 plete indifference to the provision of warmth; would be much 

 better, although it could not be much worse. 



Oapt. Stanley Flower's records show no figures of maximum 

 duration greater than those recoixled here. 



CARmVOKA. 



FeLID^. No. of Av. dm: Max. dur. 



Iiidiv. in montliS. in months. 



Felis leo (UoY)) 53 45-4 204 



i^. %r;s (Tiger) 30 44-2 145 



F. pardus (Leopard) 52 39-9 164 



J", tmcza (Snow-leopard) 2 20-5 40 



#. Z?/w.x (Lynx) . . . r. 8 57 169 



i^. rw/a (Bay Lynx) 3 55 122 



F, canadensis (Canadian Lynx) ... 2 73 139 



i^. c«r«ca? (Caracal) 9 63 131 



F. concolor {Vu-mii) 18 41-2 124 



i^. o?iea (Jaguar) 8 33-5 123 



I have omitted from these figui'es a certain number of entries 

 of under one month and which, in most cases, related to very young 

 animals or new-born c^^bs. The highest record in the period, 

 17 years, in the case of a Lion, is certainly very much under the 

 potential longevity of the group, for lions of between 30 and 40 

 years old have been known. The discrepancy between the 

 average duration and the maximum duration is still great, but 

 very much less serious than in the case of apes and monkeys, and 

 consideiably less than in the case of lemurs. Capt. Stanley Flower 

 gives no higher records. 



No. of Av. dur. Max. dur. 



Indiv. in months. in n)onths. 



i^. 7^,e&^t^om (Clouded Tiger) 1 62 62 



#. ser-yaZ (Serval) 22 217 98 



F. servalina (Servaline Cat) 5 9 45 



F. temmincki (Golden Cat) 4 24 65 



F. viverrijia (Yiverrine Csit) 4 51 112 



F. bengale7isis (Be-ngalese Cat) 22 16 77 



F. planiceps (Rusty Tiger Cat) ... 2 5 5 



F. ruhiginosa (Rusty Spotted Cat). 2 1-5 2 



F. chrysothrix (Red Tiger Cat) 1 1 1 



F. catus (WM Gilt) 31 15 110 



i^. c/iaz(s (Jungle Cat) 15 47 118 



