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18 Feby 11th 1843 | Phos phorogence Emination


makes a difference in the result but no peculiar effect was observed.
The sulphuret of lime has been exposed to the air for several days and is not quite as sensible as at first or as it was yesterday, but by illuminating it several times by the discharge it increased very much in sensibillity, but it did not appear to remain luminous as long as it did yesterday. 

Found that the same phosphorescent light was produced by a coal of stone coal, intensely heated in the anthracite stove. The sulphuret of lime was defended from the direct heat by a thick crystal of sulphate of lime. The same substance is rendered luminous by a small degree of heat. 

The emination is screened by carnelian, and this substance, as I am informed by Dr Torrey, is supposed to be fused quartz, or it is quartz with a glassy structure. 

The action appears to diffuse itself.  If a paper be placed over the tray with a hole in it, and another paper at some distance above also pierced with a small hole, then the ray will not diverge, but the whole surface of the mineral  powder will exhibit the phosphorescence, the most intense light is confined to the center of the hole, but still there is light all around and over the whole surface.
    
 I find on comparing my experiments with those which are given in the Encyclopedia Britannica on the subject of phosphorescence, that those ^[[substances]] which I find do not transmit the phosphorigence principle are also incapable of being made phosphorescent by a discharge of electricity. [[end page]]

[[begin page]] Feby 16th 1843 | Experiments on Mesmerism 19
[[three penciled in checkmarks]]
   Agreeably to appointment, I made some experiments today on a mesmeric subject, in order to test the truth of the assertion which had been made, that by throwing a person into what is called the mesmeric state, magnetism could be imparted to soft iron by a touch of his hand, and that his body would exhibit electrical phenomena. 
     The subject was a young Negro, in the employment of a Mr. Anthon, a lecturer on Mesmerism.  He appeared to be about 20 years old, not very intelligent, and was perhaps a good subject to be wrought upon, in the way of exciting his  imagination. The magnetizer appeared to be an honest man, and fully convinced of the reality of the phenomena of animal magnetism.
     Before Mr. Anthon performed his operations on the boy, the frequency of his pulse was noted, and found to be 65 per minute, also a thermometer was placed under his tongue in order to determine the temperature of his body.  On being asked if he perceived any peculiar feeling when the instrument was in his mouth, he declared that he did, that it made him [[underlined]] numb [[/underlined]]. After this he was placed on an electrical stool and made to touch a delicate gold leaf electrometer, but he gave no signs of free electricity.
     After these experiments, he was thrown into what the operator called, the mesmeric sleep.  Of the nature of this state, I can say nothing from my own observation, although I am inclined to believe that the condition was not intirely feigned.  The eyes were closed [[strike out]] and [[/strike out]] or nearly so, and the countenance assumed, or rather exhibited, a stupid expression, resem

Transcription Notes:
Many commas seem to be in pencil, while the rest of the writing is in pen. 09-28-14-BW JH is definitely using an 'alternate' spelling of 'phosporescence' when he refers to the phenomenon. i.e. phosphorogence. 09-28-14-BW Changed misspelled words to keep JH's spelling, per SI/TC help page instructions.