828 



Static Electricity. 



No. fiu 



60 555. 1 : (i. 



60 554. 1 : 4. 



60552. 1:4. 



60 557. 1 : 5. 



60 558. 1 : 4. 



60 559. 1 : 5. 



60556. 1 : 10. 



60 560. 1 : 3. 



60.552. Fulminating Tube, F i g u r c, 40 cm long 



60.553. --idem, 75 cm long 



60.554. Fulminating Flask, Leyden jar 160 mm high and 80 mm wide, coated externally 

 with square shaped pieces 



60.555. Fulminating Slab, of glass, Figure, with tinfoil figure pasted on, 22x28 cm, 

 on stand 



60.556. Fulminating Slab (Pfaundler's), Figure, with circular shape magnesium powder 

 coating 



This fulminating slab is worked by a continuous spark-current of an induction coil or an in- 

 fluence machine. The sparks jump from the pointed electrode on to the plate, glide over the magm-sinm 

 coating with an accompaniment of striking luminous phenomena, being finally carried off on the 

 external annular coating of tinfoil. 



60.557. Electric Tourbillion, as suggested by Griiel, Figure, for showing the electric effect 

 of points (Kleiber, Pliys. f. Gymn. Fig. 287) 



60.558. Cup and Ball, Figure, on stand 



60.559. Henley's Quadrant Electrometer (M. P. lo lh edn., IV, 1, Fig. 138; 9 th edn., Ill, Fig. 144; 

 Gan.-.Man. Fig. till); (lan.-Kcin. Fig. 711), with base, Figure 



60.560. Apparatus for Proving that the same Kinds of Electricity repel each other, F i g u r e, 

 consisting of three metal rings which assume right angles relative to each other when 

 charged with electricity 



io,56l. Apparatus for piercing Thin Glass, Figure (W. D. Fig. 473 [448]) 



s. (1. 

 0. 4. 



0. 6.0 

 0. 6.0 



0. 18. 



1. 0.0 



o. 18.0 

 0.12.0 



0. 12.0 



0. ll'. 

 0. 5. (I 



(1. 2155,21:16. 1711. 171)6, 

 57&I, 21B1.21f,L', I'liiH. 



