804 



Static Electricity. 



No 60218 



60 218. 1 : 8 



60219. 1:3. 



60221. 1:10. 



60222. 1:13. 



60223. .1:6. 



60.218. Electric Balance (Kleiber's), Figure (Kleiber, Phys. f. Gymn., Fig. 261) . . . 



60.219. Sine Electrometer (Schwedoff's), Figure (Ztschr. f. d. phys. 11. chcm. I'. 5. p. 235) 



The rod with the movable leaf can turn about a horizontal axis. After charging the hitter is 

 rotated until the electric repulsion is compensated by the weight of the leaf itself. The capacity of 

 the instrument thereby always remains the same. 



(io.220. Absolute Electrometer (Korolkow's) (Ztschr. f. d. phys. u. chcm. ['. 20, p. 287), without 

 the apparatus there illustrated (inductor, Leyden jar, Kolbe electrometer) 



60,221. Pendulum Electrometer, Odstrcil's, Figure, simpler pattern, for demonstrating 

 Coulomb's Law (Kolbc-Skellon, Introduction to Electricity, Part I, Fig. 30) .... 



lilt. 222. Odstrcil's Apparatus, more complete pattern, Figure, for demonstrating Cou- 

 lomb's Law (Xtschr. f. d. phys. n. chem. U. 6, p. 224) 



60,223. Pendulum Electrometer for verifying Coulomb's Law on the action of electricity at 

 a distance, as suggested by \\Vinhold. Figure (\V. !>., Fig. 120) 



Coulomb's Torsion Balance: see No. 60,130, p. 7ot. 



Pile Electrometers and Quadrant Electrometers: sec under Voltaic Electricity. 



1. 0. 



2. 10. 



3. 0. It 

 1. 0. 

 3. 10. 



i. :.. o 



i I. .Ml! I. 5(111. 4'.H.\ 



