840 



Voltaic Electricity. Section 1: Galvanic Sources of Current. 



No. 60 KH~> - 



60685 60688. 1 : 5 1 : 12 



60 693. 1 : 8. 



60 703. 1 : 5. 



60734. 1:5. 



Volta's Pile, Figure, of copper and zinc plates with felt between, insulated with ebonite 

 (Gan.-Man., Fig. 687; Gan.-Eein. Fig. 806). 



List No. 60,685 60,686 60,687 60,688 



No. of pairs of Plates 20 30 40 50 



Diameter of Plates 40 50 60 60 mm 



1. 0. 1. 10. 2. 0. 3. 0. 



Zambonic Pile, Figure, of gold and silver paper, in glass tube with terminals at the poles. 



List No. 60,689 60,690 60,691 60,692 60,693 60,694 



No. of pairs of Plates 1000 2000 3000 4000 5000 6000 



Diameter of Plates 28 28 35 35 40 50 mm 



1.4.0 1.10.0 1.16.0 2.5.0 3.10.0 5.0.0 



- i d e in, open, the discs strung on ebonite rod, with terminals at the ends. The internal 

 resistance can be regulated within certain limits by pressing the discs together by means 

 of a screw device. Any pressures can be taken off by the aid of a needle with terminal 

 let into the pile at the side. 



List No. 60,695 60,696 60,697 60,698 60,699 60,700 

 No. of pairs of Plates 1000 2000 3000 4000 5000 6000 



Diameter of Plates 28 28 .'55 .'.."> 40 50 mm 



0. 18. 1. 4. 1. 10. 1. 16. 3. 0. 4. 0. 



60,257. Pile Electrometer (Bohnenberger-Fechner's), Figure . . . . 

 60,702. idem (Bennet's), Figure (M. P. 9 th edn., Ill, Fig. 292) 



60.703. Pile Electrometer (/tschr. z. Ford. d. phys. I".. 18S6. p. 11!>), F i g u re. for objective 

 demonstration, with degree graduation on glass, pile conducted off in the centre . . 



60.704. -- idem, Figure, with open piles, variable sensitivity 



2. 15.0 



2. 0.0 



3. 5.0 

 3.15.0 



Cl. 219S, 2200, 2201, 

 2199, 391, 392. 



