u 



.The united vibrations of these two elements, and' 

 unsubjected by either of the two others, is recognized 



in the force known as Electricity. When the Phos- 

 phorus predominates in the double vibration the 

 electric spark or steady form of incandescence results. 

 When Hydrogen predominates in the double vibra- 

 tion the electricity is invisible, but its effects may 

 become sensible or visible, though not in incan- 

 descence. The dark room of the photographer results 

 necessarily from the special disintegrating acid 

 function of the Phosphorus of the atmosphere, of sun- 

 light, of artificial incandescence, and of subdued 

 light, or even of the light of deep shadows. The 

 presence of Phosphorus in the atmosphere at all times 

 explains the reason why photographers are able to 

 secure impressions in cloudy weather. The sensitive 

 films used in this art are unconsciously constructed of 

 matter that excludes Phosphorus, or that prevents the 

 inertia of Phosphorus by Hydrogen. 



12. The exact constitution of the atmosphere of 

 our earth is Hydrogen, Phosphorus, Nitrogen and 

 Carbon. A mutual relation or interchange of atoms 

 exists at all times between the animal and vegetable 

 kingdoms of the earth. The atmosphere is the un- 

 cohered crust or envelope of the planet within which 

 all kingdoms have evolved. The crust is the cohered 

 atmosphere or envelope from which the evolved king- 

 doms secure their atoms of replenishment. The con- 

 stitution of one, therefore, must be exactly the same 

 as that of the other; and it is a simple illusion to sup- 

 pose that one can possibly possess a constitution 

 different from that of the other. Tin' crust cohered 

 from outward, inward, and not vice versa. Innate 

 recognition of the actual relations of die four gases 

 which will lead the enquirer into the actual methods 

 by which all meteorological phenomena are produced 

 sustains the truth that no foreign element exists in 

 the atmosphere outside the four universal gases men- 



