Page:Proceedings of the Royal Society of London Vol 4.djvu/417

Rh meter marked B 2. The limiting value of the solar radiation, after passing through an indefinite atmospheric thickness, is 15° 2'.

7- The absorption, in passing through a vertical atmosphere of 760 millimeters of mercury, is such as to reduce the incident heat from 1 to 0-534.

8. The physical cause of this law of absorption appears to be the non-homogeneity of the incident rays of heat, which, parting with their more absorbable elements, become continually more per- sistent in their character ; as Lambert and others have shown to take place, when plates of glass are interposed between a source of heat and a thermometer.

9. Treating the observations on Bouguers hypothesis of a uniform rate of extinction to the intensity of the incident rays, the author obtains for the value of the vertically transmitted shares of solar heat in the entire atmosphere, —

By the relative intensities at Brientz and the Faulhorn... 0'6842

By the observations at the Faulhorn alone, —

First method 0-6848

Second method 0*7544

By the observations at Brientz alone, —

First method 0-7602

Second method 0*7827

The President informed the Meeting that the Council had voted the following Address to Her Majesty, the Queen.

" The Humble Address of the President, Council, and Fellows of the Royal Society of London for improving Natural Knowledge.

" Most Gracious Sovereign,

" We, Your Majesty's most dutiful and loyal subjects, the President, Council, and Fellows of the Royal Society of London for improving Natural Knowledge, beg leave to approach Your Majesty's throne with the expression of our deep sorrow that any subject of Your Majesty should dare to lift his arm against Your Majesty's sacred person. We offer up to Divine Providence the grateful ho- mage of our hearts, that He has been graciously pleased to guard a life so valuable to all the inhabitants of these realms; and we pray most fervently that the same Almighty Protection may long preserve Your Majesty in the possession of health and every other blessing to your family and your people."

The President informed the Meeting that the Council had adopted the following Address to His Royal Highness Prince Albert of Saxe Coburg and Gotha : —