[2 



by gentle pressure upon the eyeball. This light in 

 the eye has Long been regarded by certain branches of 

 the medical profession as an abnormal condition of 

 the matter of the organ, and has been designated 



Phoiopsia. Other scientists of a late day have ex- 

 pressed the belief that the eye absorbs light during 

 the day, and retains it for a certain period, and that 

 while present in the eye it may he detected. The 

 fundamental truth concern in: g these theories is that 

 the eye, or organ of sight, is the one important 

 medium of correlation between the. photosphere of the 

 sun, its diffused matter, and the evolved brain. The 

 same embedded phosphorus, or medium of light, 

 which is only sensation of phosphorus-vibration, may 

 be witnessed in the eyes of many animals, particularly 

 in those of the cat. The phosphorescence of the ocean. 

 the light of the fire-fly and glow-worm, thousands of 

 varieties of which exist in the tropical regions, are a 

 few evidences of the existence of Phosphorus in sub- 

 jective relation with other elements. 



7. A violent natural affinity exists between Phos- 

 phorus and Hydrogen. The same affinity exists 

 between Phosphorus and Carbon. The affinity that 

 exists between the former two tend, however, to a 

 mitigation of the acid or burning principle by the 

 Hydrogen in its function as the subjecting element. 

 The affinity that exists between the Phosphorus and 

 the Carbon, on the contrary, tend to the greatest 

 danger, on account of the special function of Carbon, 

 which is aggregation. 



8. The function of each of the four gases is as fol- 

 lows: That of Phosphorus is violent disintegration. 

 Thai of Carbon is violent aggregation. That of 

 Hydrogen is amelioration or reduction of vibration, 

 on accounl of quantity and fineness of atoms. On 

 this account it yields to compression with difficulty. 

 and is accorded the position as thestandard of weight 

 among the other elements. The (unction of Nitrogen 



