956 APPENDIX. 



FRICTIONAL ELECTRICITY. 

 4000ag. Glass Tube. 

 4OOOah. Amalgamed Silk Rubber. 

 400Oai. Balanced Glass Tube. 

 400Oaj. Pointed Support for Glass Tube. 

 4000ak. Pith Balls with Insulating Threads. 

 4OOOal. Insulating stand for Insulating Threads. 

 4000am. Proof Plane [glass]. 

 4OOOan. Proof Plane [sealing wax]. 

 4OOOao. Proof Plane [ebonite]. 

 40OOap. Insulated Flannel Rubber. 

 4OOOaq. Gold Leaf Electroscope. 

 4OOOar. Shellac Rod. 



40OOas. Flannel Rubber for Shellac Rod. 

 40OOat. Sealing Wax. 



4000au. Flannel Rubber for Sealing Wax. 

 4000av. Cylindrical Conductor on Insulating Stand. 

 40OOaw. Conical Conductor on Insulating Stand. 

 4000ax. Spherical Conductor with Insulating Thread. 

 4OOOay. Spherical Conductor with Insulating Thread. 

 40OOaz. Insulating Stand for Spherical Conductor. 

 4000ba. Insulating Stand for Spherical Conductor. 

 4000bb. Insulating Plate. 

 4000bc. Condenser. 

 4000bd. Fulminating Plate. 

 40OObe. Bennett's Multiplying Condenser. 

 400OM. Leyden Jar Discharger. 

 40OObg. Oval Conductor no Stand. 



