810 



Static Electricity. 



No. 60267 



60 279. 1 : 15. 



60300. 1 : 10. 



60.267. Adjustable Sounder with brass ball, rubber hose and gas outlet tip, on ebonite pillar <i 

 with iron base, Figure 0. 12. 



60.268. 2 Pairs Conducting Wires with lugs and pins, Figure on p. 809 0. 1. 6 



60.269. Connecting Wire, 50 cm long, with ebonite handle, Figure on p. 809 .... (). 



60.270. Bridge, Figure, hollow rail with wire inlaid, brass discs and ebonite handles . 0. 



60.271. Test Disc, 1 sq. m., with ebonite handle, Figure on p. 809 



60.272. 1 Test Ball 



60.273. 1 Large Leyden Jar, excellent insulation, of flint glass, 26 cm high o 



60.274. 2 Heavy Iron Stands and 1 Small Double Cone of gold paper and silk cord, Figure 



on p. 809 0. 



60.275. Porcelain Rod and Ebonite Rod, with rubbers, Figure on p. 809 o 



60.276. 2 Condenser Plates 



60.277. 1 Square Glass Slab 



60.278. 6 Ebonite Discs 



60.279. Apparatus for Measuring the Potential Drop in the Neighbourhood of a Conductor 

 Figure 1 



Apparatus for Elementary Electrostatic Measurements as 

 suggested by Dr. Carl Noack, Giessen. 



(Abhandlungen zur Didaktik und Philosophic der Naturwissenschaften, Vol. II, part 1, 



Berlin 1906, published by Julius Springer.) 



60.280. Leaf Electrometer with 2 insets with aluminium and paper leaves respectively, trans- 

 parent scale for projection and plate glass scale for subjective reading, Faraday's 

 receptacle and double needle for smoothing the leaf (pp. 14 20, Fig. 7 13) .... 



60.281. Accessories for graduating the Electrometer with a pointed conductor, ('(insisting of: 

 wire net cage, conductor with fine point, wire netting for making the earth connection, 

 also 1 each test ball of 10, 15 and 20 mm diameter, on long handle (pp. 20 23, 

 Figs. 15 and 16) 



60.282. Large Leyden Jar, 50 cm high, for graduating the electrometer (pp. 23 24) . . . 



60.283. Accessories for graduating the electrometer by Faraday's method (p. 24, Fig. 18), 

 consisting of: 2 sheet iron cylinders of different si/e, amber ball and insulating cable 



60.284. Zamboni Pile for calibrating the electrometer in potential degrees (p. 25, Fig. 19) . 



60.285. Sheet Iron Cube for placing on Leyden Jar No. 60,282 (p. 27, Fig. 20) 



a.o 



10.0 

 1.6 

 1.0 



8.0 



8.0 

 7.0 

 16.0 

 4.0 

 1. 



10.0 



2. S. 



2. 



1. 







2 

 



8.0 



I. (i 



16.0 

 14.0 



i I. .ML'Ci, r.743. 



