No. l-Diagram showing the MEAN HIGHEST DAY TEMPERATURE, the MEAN HIGHEST 

 NIGHT TEMPERATURE, and the MEAN TEMPERATURE, for the Year; together 

 with the same for each Month in the 32 years, 1850 to 1881 inclusive, at the 

 ROYAL INSTITUTION OF CORNWALL, Truro, in Lat. 50^ IT N., Long. 5^ 4 W. 



La/at I-iki. Ihun' 



