1870.] 



on the Human Economy. 



527 



The following Table contrasts the average heat of the body in the 

 tropics and in temperate climates. Thus, while in England during a 

 summer and almost subtropical temperature ranging from 60° to. 70° F., 

 the average temperature of the body was 98°'3 F. it rose in the tropics 

 to 98°' 6, and in the equatorial doldrums to 99° F. The difference would 

 have been greater had the season in England been winter, or the latitude 

 higher. From column 3 it appears that the temperature of the body in 

 the tropics is greatest during the afternoon, when the sun is high and the 

 body most active, and least in the morning — an interesting fact in connexion 

 with the pulse, likewise highest and lowest then. 



Table IX. — To contrast the bodily temperature in tropical and extra- 

 tropical latitudes. 





Temperate climate 



(near England), 

 June, temp. 65° F., 

 average of 10 days. 



Tropics generally, 

 average of 51 clays, 



Equator, 

 temp. 84° R, 

 average of 7 clays. 



9 A.M 



98-1 



9851 



98-5 



3 P.M 



98-3 



99 



99-5 



9 P.M 



98-5 



98-47 



99-1 





98-3 



98-66 



99-02 



"While observation thus showed that the average temperature of the 

 body about the latitude of England is 98°*3 F., the following Table shows 

 that it rises in the tropics to 98-^-99-99^-, and occasionally even to 100° F. 

 This fact is interesting, if not important, in connexion with temperatures 

 in disease ; and the mutual relation of the two is worth study. 



Table X. — To show the temperature of the body in the tropics, and its 

 relation to period of the day. 





Average 

 temp, of air 

 (shade). 



Number 

 of obser- 

 vations. 



Temp. 

 98° F. 



Temp. 



98^° F. 



Temp. 

 99° F. 



Temp. 

 99J ° F. 



Temp. 

 100° F. 



9 A.M 



98-51 



51 



22 



11 



11 



7 



0 



3 P.M 



99 



51 



6 



5 



18 



17 



5 



9 P.M; 



98-47 



51 



8 ' 



23 



15 



5 



0 



Averages and 1 

 totals J 



98 



153 



36 



39 



44 



29 



5 



Table X. further shows the great preponderance of the lower tempera- 

 tures, especially the lowest (98° F.), during the mornings, of the higher 

 during afternoon, and of the medium ones (98-^° and 99° F.) during 

 the evening. The heat of the body (and the blood ?) thus rises in the 



2r2 



