No. 62 390. 



Ampere's Stands. 



967 



62 389. 1 : 5. 



62388. 1:12. 



62 390. 1 : 4. 



62, 368. Zinc Plate, in two parts, for demonstrating lines of force, for vise in conjunction with 

 No. 62,367 (W. D. Fig. 547 [520]) 



(iL'..">sf;. Ampere's Stand, large pattern, Figure, with aluminium solenoid working on 

 sapphire rap; height of stand 75 cm. The lateral flat wire coil moves in hinges, as does 



also the lower wire holder 



The apparatus works very well with a few Bunsen Cells and permits of proving the laws of 

 attraction and repulsion of currents flowing in the same and opposite directions. 



62.387. Ampere's Stand, simple, Figure, with a rectangular, a circular, an astatic and 

 a solenoid-shaped conductor 



62.388. Apparatus after Friedr. C. G. Miiller, for demonstrating the electro-dynamic action 

 upon each other of currents flowing in the same and opposite directions. F i g u r e, com- 

 prising two bundles of Lametta strips stretched between terminals, and a Eoget spiral 

 (M. T. Fig. 214) 



<;.;. is ( .. Apparatus after .Miihlenbein, Figure for demonstrating the alternating action 

 of currents and magnets (Ztschr. f. d. phys. u. chem. U., 1, p. 203) 



The apparatus admits of proving Ampere's Laws easily and visibly for teaching purposes. 



62,390. Apparatus for Muhlenbein's experiment, Figure, after Kolbe (Kolbe-Skellon, 

 Introduction to Electricity, Part II, Fig. 96), consisting of 1 wire frame on wood board 

 (No. 62,392, 0.15.0), I'Ruhmkorff Commutator (No. 61,135, 1.5.0) and 1 movable 

 Conductor as suggested by Miihlenbein (No. 62,391, 0.15.0) 



s. d. 

 0. 4. (I 



7. 10.0 

 1. 10. 



1. 16. 



2. 14.0 



2. 15. 



Cl. 2676, 3887, 395G. 



