L. 623 



Prussia. — Muhlhausen. Lat. 51° 13' N. Long. 10° 27' E. 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. 



The numbers without sign must be ail led ; those with the sia:n — must be subtracted. 



59 



