Identifier: generalphysiolo00rose (find matches)
Title: General physiology of muscles and nerves
Year: 1881 (1880s)
Authors: Rosenthal, I. (Isidor), 1836-1915
Subjects: Physiology Muscles Nerves
Publisher: New York, D. Appleton and company
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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Fig. 12. Wagners Hammer. PULSATION AND TETANUS. 35 the clamp on the left. In order to use this hammer forthe production of inductive currents, the one coil, A, ofthe apparatus (shown in fig. 10, p. 31), must be insertedbetween the two clamps shown on the right.^ Wagners hammer in a more simple form may bepermanently connected with coil A. In this case it isbest to place the second coil 5 on a sliding-piece whichis so arranged that it can be moved along a groove to a
Text Appearing After Image:
Fig. 1( The sliding INDVCTIVE AlTAliAlLs. (As used bj- du Bois-RejTnond.) greater or less distance from coil A. This enables theoperator to regulate the strength of the inductive currentgenerated in it. Fig. 13 represents an apparatus of thissort. The secondary coil, in which the inductive currentsoriginate, is in this case indicated by i; the primary coil,through which the constant currents pass, by c; 6 is theelectro-magnet; h the armature of the hammer; / isa small screw, at the point of contact of which with the In order to set Wagners hammer itself in motion, these clampsmust be connected bj a wire through which alone tlie connectionfrom the point to the coils of the electro-magnet is made. 36 PHYSIOLOGY OF MUSCLES AND XERVES. small plate soldered on to the surface of the German ■silver spring the current is closed and interrupted. Anapparatus of this kind is called a sliding inductorium.It is only necessary to attach the ends of the coil i tothe muscle, and to insert the chain

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