Rain.
Mean Temp.
Rain.
in inches.
in Inches.
1-13
Jiilv 59-30
5-13
2-14
Aug. 58-09
2-94
3-21
Sept. 54-49
3-43
0-58
Oct. 48-39
3-40
0-38
Nov. 43-14
4-54
4-89
Dec. 37-29
1-85
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A paper was read, entitled " On the Wet Summer of 1839." By Luke Howard, Esq. F.R.S. &c.
The observations of the author were made at Ackworth, in York- shire ; and the following are his results with regard to the mean temperature and the depth of rain, in each month, during 1839.
Mean Temp.
Jan. 37-04 Feb. 39-64 March 39-08 April 44-09 May 49-94 June 56-35
jVIean temperature of the year 47-24°.
Total depth of rain in 1839, 33-62 inches.
He states that the climatic mean temperature of the place is about 47°, and the mean annual depth of rain about 26 inches. The excess of rain during the year 1839 w^as therefore very great.
The author describes the effect of the hurricane of the 7th of January, and follows the changes of the weather during the re- mainder of the year.
A paper was also in part read, entitled " On the chemical Action of the Rays of the Solar Spectrum on preparations of Silver and other substances, both metallic and non-metallic, and on some photo- graphic processes." By Sir John F. AV. Herschel, Bart. V.P.R.S. &c.
The President informed the Meeting that the Council had voted the following Address of Congratulation to Her Majesty, the Queen, on the occasion of Her marriage, and that he had presented it at the Levee yesterday.
" To the Queen s Most Excellent Majesty,
"The humble Address of the President, Council, and Fellows of the Royal Society of London for improving Natural Knowledge.
" Most Gracious Sovereign, " We, Your Tvlajesty's most dutiful and loyal subjects, the Presi- dent, Council, and Fellows of the Royal Society of London for im- proving Natural Knowledge, beg leave to approach your sacred person, and to offer most humbly to Your Majesty our sincere and heartfelt congratulations on the present joyful occasion of the mar- riage of Your Majesty mth His Royal Highness Prince Albert of Saxe-Coburg and Gotha ; an event, which, in unison with all loyal subjects throughout Your IMajesty's dominions, we cordially hail as the auspicious omen of lasting happiness to Your Majesty, and of permanent blessings to the British Empire. We venture to hope, that, amidst the universal felicitations of a free, affectionate, and grateful people, Your Majesty will condescend favourably to receive this tribute of the deep respect and devoted attachment of the Mem- bers of our Society; a Society which, under the fostering protec- tion of the successive Sovereigns of these realms during a period of
