TRANSACTIONS OF THE SECTIONS. 37 
constituting a new series. These alterations have been made agreeably with the 
suggestion of Professor Hansteen of the Observatory at Christiania and Mr. Grewe, 
who, since the departure from Alten of his former colleague, Mr. J. F. Cole, had 
continued the observations alone, and has been kindly assisted in this new series by 
Mr. Ole Brochgrevink, a brother officer in the Company’s service. As will easily be 
seen on reference to these observations, it has required extra exertion on the part of 
the meritorious observers, who have to baffle with a very ungenial climate for making 
meteorological observations, and more especially as their instruments are all placed 
in a small building about 100 yards distant from any dwelling-house. 
Three tables of results accompany these observations, namely— 
lst. The monthly and quarterly means of the barometer at all the hours of ob- 
servation, as well as the monthly and quarterly results. 
2nd. The monthly and quarterly means of the thermometer, also at the hours of 
observation, together with the monthly and quarterly results. 
3rd. The highest and lowest observed points of the barometer, as also the maxi- 
mum and minimum of the thermometer, with the range of each; a comparison of 
the monthly means of the thermometer with the means as deduced from the maxi- 
mum and minimum, and the monthly quantity of rain or melted snow. 
Christiania.— Dr. Lee also presented a series of meteorological observations for 
the year 1849, made at Christiania, and which he had received from J. R. Crowe, 
Esq., Her Britannic Majesty’s Consul-General of Norway. This series is a con- 
tinuation of former observations presented to the Association, and consists of ob- 
servations on the Barometer taken in Norwegian inches, and on the Thermometer 
according to the Reaumur scale, as also the quantity of rain with the direction of 
the wind. The hours of observation are 7 and 9 a.m., 2,4 and10Pp.m. Some 
useful and interesting comparisons may hereafter be made between these observa- 
tions and those now in course of being taken at Alten. 
London, July 27, 1850. 
Srr,—Agreeably with your request I have examined the Meteorological Observa- 
tions made at the Alten Copper Works for the year ending the 30th September 1849, 
as also the three Tables of results drawn up from these observations by Mr. Grewe, 
which Tables I have reduced into English scales, for the better comparing them with 
results obtained by other meteorologists with English instruments, or that may have 
been reduced to English measures; and I have now the pleasure of sending you 
herein enclosed copies of the Tables I have framed accordingly, and beg to add a 
few remarks on their contents. 
One important feature in these observations, and which will at once strike the eye 
on looking through them, is that no blanks occur ; and as they form the commence- 
ment of a new series, the results may be therefore taken as faithfully representing 
the various phenomena at the hours of observation, which I may mention have 
been changed from 9 a.m., 3 and 9 p.m. to 7 and 11 a.m., 3, 7 and 10 P.m., in con- 
formity with the suggestion of Professon Hansteen of Christiania, thus giving five 
daily observations instead of three as formerly. 
Barometer.—The results of the year’s observations on this instrument show that 
It rises from 7 a.m. to 11 A.M. ...... ... 0°00268 inch. 
And falls from 11 a.m. to 3 P.M. ...... 0°00386_ ,, 
And rises from 3 P.M. to 7 P.M........55 0:00571 ,, 
And also rises from 7 p.m. to 10 P.m.. 0'00417 ,, 
The means for the year of the 7 and 11 a.m. observations are below the mean of 
the year, while the 3, 7 and 10 p.m. are above. 
The mean for the year of the 11 a.m. observations comes nearest the mean of the 
year, differing only by 0°00028 inch, and of the monthly means that for March ap- 
proaches nearest the mean of the year (as is the case in the former series of obser- 
vations, embracing a period of eleven years), differing by an increase of 0°00161 inch 
above the mean of the year. 
The mean of the month of April, reaching 29°94907 inches, is the highest monthly 
mean of the year, while that for February, reaching only 29°23510, is the lowest. 
The highest monthly mean for the eleven years previous (see British Association 
Report, 1849, Transactions of the Sections, p. 19) was in the month of May; but 
