814 



Electrostatic Apparatus. Electrophorus. 



No. 60338 



60340. 1:14. 



60 358. 1 : 6. 



60338 and 60339. 1 : 10. 



60 362. 1 : 5. 



60.338. Electrometer for Atmospheric Electricity, Figure (Fig. 63), with volt scale on plate <i 

 glass and with long wood rod 3. 0. 



The instrument is very finely constructed and has a good suspension for the leaf. 



60.339. Flame Collector, Figure (Fig. 63), with 3 wood rods which may be screwed 

 together 1. 10. 



60.340. Communicating Water Vessels, Figure (Figs. 64 and 65), with depth graduation, 



2 of equal and 2 of unequal diameter, connecting tube with stop-cock 1. 4. 



60.341. Small Lead Plate on ebonite rod (Fig. 67) 0. 1.0 



Auxiliary Apparatus and other Accessories. 



60.342. 50 m of Fine, Bare Copper Wire . . -. 0. 1. 



60.343. 25 Sheets Aluminium Foil 0. 0. 9 



60.344. Forceps for smoothing the aluminium leaves 0. 1 . o 



60.345. Amber, long piece with natural surface 0. 5. 



60.346. Glass Rod (Fig. 1), 40 cm long, 20 25 mm thick, with amalgamated leather . . 0. r>. o 



60.347. Ebonite Rod (Fig. 1), 40 cm long, 2025 mm thick 0. 5. () 



60.348. Piece of Steatite, with ebonite handle (for experiments on pp. 13 and 15), with borinu 

 fitting for the stand of the conical conductor (Fig. 18) j 0. 5. o 



60,360. Ebonite Electrophorus, 32 cm diameter 0. 18. 



60,583. Leyden Jar, collapsible, 26 cm high (Figs. 39 and 42) 0.14.0 



60,580 Leyden Jar with fixed foiling, 26 cm high (Fig. 56) 0. 8. 



60,365. Winter's Frictional Electricity Machine (Fig. 44), 36 cm diameter, with iron base and 



ebonite axis 4. 0. 



60,370. - - idem, with wood base and glass axis 3. 10. 



60,301. Topler's Self-Exciting Influence Machine, 36 cm diameter 3. H>. ) 



60,435. Wimshurst's Machine (.self-exciting), with ebonite plates 35 cm diameter 3.10.0 



Electrophorus. 



Electrophorus, of ebonite, F i g u r e, with metal base, double walled metal cover on ebonite 

 handle and with burled silk rubber ((Ian. -Rein., Fig. 738). 



List No. 60,357 60,358 60,359 60,360 



Diameter cm 17 '2\ L'<> 32 



0. 10. 0. 12. 0. 15. 0. 18. 



Cl. 2121. 2IL"_'. 

 2tL'ti, 2123. 



