262 Jn Essay an the medical Effects of Climates. 



tarded or mitigated, by repeated emigrations into warmPf 

 and warmer climates, after the age o}' 30 or 60, according 

 to Circumstances: and he thinks that even posterity may 

 he benefited by an emigration of this kind. 



In whatever situation the residence of an invalid mny be 

 fixed, it is of no small importance that the aspect and ex- 

 posure of the house, which he occupies, should be selected 

 with a view to the qualities of cliuiaie which he is desirous 

 of obtaining. We have an illustration of the truth of this 

 remark, in an observation recorded by Dr. Carrick, re- 

 specting the influenza of 1803. " One of the most open 

 and exposed of the buildings on Clifton hill is Richniond 

 terrace, which forms three sides of a parallelogram, front- 

 ing respectivelv the east, south, and west; on the east side, 

 not one family, and scarcely an individual, escaped the 

 complaint; while on the south side, a great majority, both 

 of persons and families, in all oliier respects similarly cir- 

 cumstanced, escaped it entirely." Such facis as these are 

 among the icw which afford solid grounds for medical rea- 

 soning;; and they deserve the more attention, as they relate 

 to circumstances of cf)ntinual occurrence, and of perpetual 

 influence on our health and comfort; and in proportion as 

 both the medical and the mcieorolofrical sciences become 

 founded on a firmer basis, it cannot be douljted that their 

 beneficial effects will be more and more experienced, as 

 well in the preservation of liealth, as in the treatment and 

 cure of diseases. 



TABLE OF THE ANNUAL MORTALITY 



Of the different Counties of Great Britain, according to the 

 Returns o/' 1 8 1 1 . 



