XVII. 



Lat. 22° 54' S, 



591 



S. America. — Rio Janeiro. Lat. 22° 54' S, Long. 43° 16' W. Greenw. 



Corrections to be applied to the Means of the Hours of Observation to obtain the true 



Mean Temperatures of the respective Days, Months, and of the Year. — Dove. 



Degrees of Reaumur. 



F 



The numbers without sign must be added ; those with the sign — must be subtracted. 



27 



