APPLIED TO METEOROLOGICAL OBSERVATIONS. 
139 
It was a matter of considerable interest to determine the extent of country to 
which these corrections would apply, and to this purpose I have had recourse to the 
observations made at different parts of the country and furnished to the Registrar- 
General. Some of the results of this investigation I have already mentioned in the 
rema'‘ks following Table III. The general result was found to be, that for all places 
situated inland, the values contained in these tables may be adopted at once. For 
places situated near the sea the hygrometrical values may not be strictly true, but in 
the absence of any series of observations taken in these localities from which the 
corrections can be deduced, we must arrive at approximate mean values by means 
of the observations at the Royal Observatory at Greenwich. In the reduction of the 
observations for the Registrar-General I have so done ; and I have found the tables to 
be of great assistance, not only in the reduction of the observations, but also in the 
detection of errors, and pointing out the place where such existed. 
I have merely to remark that I have not formed tables of corrections for longer 
periods than a month, as the doing so would have extended this paper to a great 
length, and such can be readily formed from the tables themselves ; neither have I 
spoken of the mean or other values, as I hope soon to have the honour of presenting 
to this Society some of the meteorological results deduced from the observations 
taken at the Royal Observatory between the years 1840 and 1843. 
Greenwich, Feb. 10, 1848. 
