120 ON MAGNETIC INFLUENCES OF SOLAR LIGHT. 



might be afforded, through the medium of some scientific 

 periodical work, for the promotion of science. <m 



Fourth. 



That a course of experiments should be instituted by such 

 scientific gentlemen as may find leisure and disposition to 

 individually undertake them, (the more numerous the 

 better) on the refracted homogeneous rays of solar light, 

 to ascertain their effects peculiar and distinct, on matter 

 of known constitution on the metals, the acids, alkalies, 

 on the separate homogeneous gases, and on chlorine, and 

 the heterogeneous gases; and particularly in reference 

 to the magnetic and counteracting influences by the three 

 homogeneous rays. 



Fifth. 



That magnets of ascertained intensity of power be submitted 

 to the influences of oxygen, positive electricity, and the 

 red ray of solar light, as also the red ray of refracted arti- 

 ficial light, produced by the oxy-hydrogen blow-pipe, 

 with the aid of lime, alkalescent matter, and with char- 

 coal, with the view of deciding the IDENTITY of oxygen 

 with positive electricity, and with the red ray of celestial 

 and of terrestrial light. 



Sixth. 



That further experiments should also be attempted in pro- 

 ducing magnetic power by the blue ray and violet, end of 

 the spectrum, with and without the aid of auxiliaries, 

 such as alkalescent arid hydrogenous matter, and with 

 phosphorus and sulphur. 



Seventh. 



That particularly on the inflammation of the three gases in 

 the proportion mentioned in the 9th article of this Theory, 

 for the product of perfect white light, and with modified- 



