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THE

POPULAR SCIENCE

MONTHLY.

CONDUCTED BY E. L. AND W. J. YOUMANS.

VOL. XI.

MAY TO OCTOBER, 1877.

NEW YORK:
D. APPLETON AND COMPANY,

349 & 551 BROADWAY.

1877.

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rant Enterprise--Production of Near-sightedness in Schools–Astronomical Observations

on the Rocky Mountains_Influence of Heat on Galvanic Conductivity, etc....

NOTES

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127

NEW YORK:

D. APPLETON AND COMPANY,

549 & 551 BROADWAY.

1877.

COPYRIGHT BY D. APPLETON & CO., 1877.

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Latest Improvements in Pulvermacher's Galvanic System. No longer than thirty-five years ago it would have been considered an impossibility to supersede the cumbrous electrifying machines and unwieldy baiteries, with their corrosive acids, by a PORTABLE VOLTAIC Chain, producing instantaneously, by means of a little vinegar, a powerful electric curreni, followed by a mild and continuous voltaic action.

This difficult problem, however, was so successfully solved by PULVERMACHER'S Chain-Appliances and Balleries, that these at once obtained full recognition from scientists and the élite of the medical profession, both in England and abroad.

Notwithstanding the success attained in this direction, there remaincd a further desideratum, which, in its prima facie aspect, appeared fully as difficult as the former achievement--viz., thu! of combining efficiency with such comfort and convenience in cell-application as would sati-fy ibe most delicate or fastidious patient. This desideratum has given birth to a series of successive improvements, which at length have culminated in PULVERMACHER's latest production, viz., Chain Belts and Bands, by which the perfection of comfort, combined with the utmost efficiency, is now a fait accompli.

These bighly-perfected appliances supply mild continuous Galvanic currents to the body in a warm and comfortable manner, and patients are now enabled to avail themselves of these desirable improvements.

The newly-perfected appliances now universally adopted have upon one side of the positive and negative poles our trade-mark, with motto, “Electricity is Life," also, the fac-simile signature of the inventor.

Two forms of Chains are made-one of a short, brond construction, called BELTS, for the purpose of concentrating the current, as necessary in bodily troubles, and the other of a long, nairow form, called BANDS, for diffusing the current through the whole length of the limbs, or other extended line of the body, by being wound spirally, according to the case; different leugths of both kinds of Chains are enumerated in the following:

66

66

66

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No. 1 Electric Chain-Belt, full power, 25 inches long, Price, $12.00 2

less
21

10.00 66 3 milder"

8.00 1 Electric Chain-Band, full

36
66

12.00
less
30

10.00 3

milder 66
24

8.00

66 2

66

66

66

66

po Complicated Disorders and extreme cases of Nervous Debility, Paralysis, and Exhausted Vital Energy, require special treatment. Belis ard Electric Attachments, or combined Bande, in conuection with our Self-Restorable Chain Batteries, as most advieable.

F Prilvermacher's Belts and Bands should not be confounded with any other so-called Electric Appliances.

PAMPHLETS CONTAINING FULL PARTICULARS FREE.

Address

PULVERMACHER GALVANIC CO.,

290 & 292 Vine St., Cincinnati, O.

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