391 



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. 



" To the Queens Most Excellent Majesty. 



" The Humble Address of the President, Council, and Fel- 

 lows of the Royal Society of London for improving 

 Natural Knowledge. 



" Most Gracious Sovereign, 



" We, Your Majesty'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 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 : — 



