84 



SUMMARIES OF THE 



* If the 29th of Fehruary be omitted in computing the means of that month for the leap years in Tahle XXII, 

 tlie general mean of February in that table will be 47.78. 



t If the three days observed in May, 1848, be omitted iu Table XXIII (as they are in Table XVII), the mean 

 »f this column will be 69.77. 



