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 . )ortunity since of continuing my researches until (piite re-cently. While r was in Eur<»pe, however, Mr. Snnnier Tainterdevised a new kind of induction Balance which deserves men- tion here. The Iesults obtained with this apparatus in its pres-ent form (Fig. 29) are not to he compared with those producedby the best instruments described al)ove, but there
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 . )ortunity since of continuing my researches until (piite re-cently. While r was in Eur<»pe, however, Mr. Snnnier Tainterdevised a new kind of induction Balance which deserves men- tion here. The Iesults obtained with this apparatus in its pres-ent form (Fig. 29) are not to he compared with those producedby the best instruments described al)ove, but there are undoul)t-edly great possibilities of future development. 44 The iuipoi-tuut feature is that the e.\pL»riiig instrument Econsists of a ^hujle mlL so that there is no possibility oi anypart of the exphjrer getting out of adjustment. All the ad-justments are made upon the stationary part of the current of the hattery is diyided Ijetween t^vo equal cir-cuits. One of the primary circuits contains tlie coil A and^the exploring coil E, and the other circuit the coil C anda i-heostat R. Coils A and C are exactly similar; and if theresistance introduced at R is e(|ual to the resistance of the ex-plorinu coil E, an acoustic lialance can be obtained by the ad-justment of the secondary coils B D upon the primaries A C ;but if the resistance introduced at R is different from that atE, Mr. Tainter states t
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Keywords: ., bookauthoryapamphl, bookcentury1800, bookdecade1880, bookyear1882
