SIO Dr Ilichardson‘’s RemarTcs on the Climate and 
1819-20, the month whose mean temperature, at Cumberland 
House, approached nearest to the mean of the year, was April ; 
but perhaps, the mean of observations continued for a series of 
years, might point out the m.onth of October as approaching 
more nearly to the mean of the year, Baron Humboldt ob- 
serves, that this last month coincides generally within a degree 
of that of the year on the isothermal line of -f- S5.6° Fahrenheit, 
The mean of the spring and autumn temperatures at Cumber- 
land House + 32.4° coincides very nearly with the annual mean, 
and the same thing occurred at Fort Enterprize, and also at 
Melville Island, within the fraction of a degree. At Igloolik 
and Winter Island, the climate being more of a maritime nature, 
the coincidence was not so exact. Melville Island, lying directly 
north of the centre of the Continent, must be warmed in the 
summer by occasional southerly breezes, which may account for 
its greater proportional summer temperature, when compared 
with Igloolik and Winter Island. 
The mean temperatures for the last ten days of October at 
Cumberland Flouse, and for the last ten days of April at Fort 
Enterprize, correspond very nearly with the mean annual tem- 
peratures at the respective places. Baron Humboldt remarks, 
that it is an object of importance for travellers, whose obser- 
vations are necessarily limited as to time, to know the ratios 
that exist between the temperatures of certain portions of the 
year and the mean annual temiperature and although obser- 
vations for a single year, in high latitudes, are not to be de- 
pended upon, yet they may form the groundwork for future 
correction or verification ; and we trust that the expeditions of 
Parry and Franklin will supply much that is wanting. 
On comparing the seasons at Cumberland House with the 
seasons found on different isothermal lines in Europe, as laid 
down by Baron Humboldt, we find that the winter of Cumber- 
land House, in Lat. 54°, and isothermal line of -f- 32°, is colder 
than that of Enontekies, in Lat. 68°, on the isothermal line of 
-j- 27° ; that the isocheimal line^ or line of equal winters, at 
Cumberland House — 4®. 6 passes to the north of Europe, being 
much colder than that of the North Cape in Lat. 71®, which 
has a maritime climate, and 4® below that of Enontekies, which 
has a more interior climate, and higher elevation above the sea. 
