218 PHYSICAL CAUSES OF 



sirocco ; ' while males were c temporarily paralysed, and bred 

 paralysed pups with sore eyes.' 



The mental effects of insolation or sunstroke seem to be 

 very much the same in other animals as in man. Thus the 

 morbid mental phenomena in a female ape included, accord- 

 ing to Pierquin, various marked changes in habit and 

 character, such as 



1. Irritability, associated with a tendency to viciousness, 

 a development of the biting propensity. 



2. Timidity. 



3. Indifference, as illustrated by negligence of its usual 

 caresses, and by making no distinction between men and 

 women. 



4. Loss of gaiety or liveliness. 



5. Sometimes a species of stupefaction. 



6. The look becoming wandering, wild, unsettled, or the 

 gaze fixed. 



7. Cries. 



8. Perversions of taste and digestion, including loss of 

 appetite, or voracious and indiscriminate appetite. 



9. General exalted cutaneous sensibility. 



10. Loss of agility. 



11. Nocturnal agitation. 



12. Uncontrollable bodily movements of an irregular 

 kind. 



13. Orthopnoaa. 



14. Epileptiform convulsions. 



15. Erotomania, followed by ordinary mania and de- 

 mentia 



The whole symptoms, mental, sensorial, and motor, suc- 

 ceeding each other with great rapidity. 



The tendency of protracted or extreme cold is, in other 

 animals as in man, to produce "dulness of spirits, languor, 

 inertia even a kind of stupidity or lethargy as in Green- 

 land dogs. It has a perceptible effect in diminishing the 

 natural ardour or vivacity. In some cases, however, excite- 

 ment, rather than depression, would appear to be caused. 

 Thus we are told that cold so affects the temper of the loris 

 that their disposition passes from gentleness into fierceness 

 (Jones). 



