Upon the electrical experiments to determine the location of the bullet in the body of the late President Garfield; and upon a successful form of induction balance for the painless detection of metallic masses in the human body . thebody where the bulh^t is beli(;ved to be lodged. VVhei tliepoint of the needle makes contact with the surface of the bulletC a gahanic battery will be formed naturally witliin the body,the two poles of which are respectively the leaihiu l)ul]et Cand the metallic plate I>. Under these circumstances a clickwill be heard from the telephone each time the l)ullet ist
Upon the electrical experiments to determine the location of the bullet in the body of the late President Garfield; and upon a successful form of induction balance for the painless detection of metallic masses in the human body . thebody where the bulh^t is beli(;ved to be lodged. VVhei tliepoint of the needle makes contact with the surface of the bulletC a gahanic battery will be formed naturally witliin the body,the two poles of which are respectively the leaihiu l)ul]et Cand the metallic plate I>. Under these circumstances a clickwill be heard from the telephone each time the l)ullet istouched by the needle. This has been verified by experimentsupon bullets buried in a joint of meat. The click, thoughfeeble, is unmistakable. I have no doul)t that this method of ex])loration alone, withouttlie Induction IJalance, would prove of great service upon a fieldof battle, where the employment of complicated apparatus isimpossible. Mr, Thomas Gleason has recently connnunicatedto me the particulars of an experiment he witnessed, in tliecourse of which this method was tried upon a living sul) surgeon who conducted the experiment was unable to ob-tain any response from the Induction I>alance employed, al-. 43 tliougli from certain iudicatioiis apparent to the sense of touchhe l)elieve(l that the l)ullet was h)cated in the part of the hodysuhniitted to experiment. To verify his supposition a needle connecttil as al)ove ( Fii;. 28)was thrust into contact witli tlie hard sul)stance perceived, hutno response was made hy the telephone. The surgeon, how-ever, helieving that the l)ullet had l)een found, etherized hispatient and proceeded with an o})eration, hut discovered, whentoo late, that the l)ullet was not there. Finthcr }f(nJliicdthiiiK of Iinhicfion liidaiwe. \ sailed foi- Kurope early in ( )ctoher, ISSl, and luivi! had noop})ortunity since of continuing my researches until (piite re-cently. While r was in Eur<»pe, however, Mr. Snnnier Tainterdevised a new k
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Keywords: ., bookauthoryapamphl, bookcentury1800, bookdecade1880, bookyear1882
