363 ACCOUNT OF THE ARCTIC REGIONS. 



whatever direction it should blow, it must be cooled 

 down by brushing over an extensive surface of ice ; 

 consequently the full frigorific effect of the ice must 

 be greater at the Pole, than in places situated at or 

 near the borders of the ice. For if JMayer's formula 

 be well founded, and if the difference between the 

 observed temperature of the polar seas and that by 

 estimation on this formula, be entirely the frigorific 

 effect of the ice ; — then the frigorific effect of the 

 ice in the parallels which have been observed near 

 the sea, will be to the same at the Pole, as the 

 amount of frigid winds (or winds blowing over an 

 extensive surface of ice,) during any period in those 

 places whose temperatures have been observed, is to 

 the amount of frigid winds during the same period 

 at the Pole. Lotus apply this proposition for examin- 

 ing into the frigorific effect of the ice at the Pole. 



From the meteorological results, contained in the 

 Appendix, (No. II. Table B.), it appears, that du- 

 ring nine years observations made in the months of 

 April and May, or such parts thereof as are used in 

 the estimation of the mean temperature, as stated 

 above, the wind blew off the ice, or from the land 

 covered with snow and ice ; that is, in the quarters 

 included between the S. W. b S. and N. E. points, 

 (north about) 147.4 days* ; but in the remaining 

 quarters, included between N. E. and S. S.W. only 

 58.8 days ; to the former of which, (147.4) if we 



• See the next following Note. 



