No. 63 250. 



Tesla Experiments. 



1035 



/I 



63 238. 1 : 6. 



63 239. 1 : 6. 



63 241 A. 1:4. 



63240. 1 



63242. 1:4. 



63 249. 1 : 8. 



63250. 1:8. 



transformation; 2 insulating stands, 2 copper rings and 2 copper wires for producing a luminous wall, 

 2 wire nets for generating a high frequency field, 1 electrodeless tube, 1 glow lamp with one elec- 

 trode, 1 wood piece with two terminals. 



63.242. Oil-insulated High Tension Transformer after Weinhold, separately, Figure (W. 

 D., Pig. 607 [552]), for induction coils of 60150 mm spark-length 



63.243. - - idem, larger, for larger spark coils 



Leyden Jars after Lodge, for demonstrating Electric Resonance: see p. 838, Nos. 60,646 30,648. 



63.249. Leyden Jars for Lodge's Resonance Experiment, after Weinhold, Figure (W. D., 

 Fig. 608 [553]) 



63.250. Apparatus for Generating Currents of High Frequency and Voltage by Resonance, 



after Oudin, Figure, consisting of 1 spark micrometer with zinc bulbs and protec- 

 ting case, with ebonite grip; 2 Leyden jars each 160 mm high and 1 Oudin Eesonator, 

 mounted on one polished base together with all necessary connections 



s. d. 



2. 10. 

 3.12.0 



1. 10. 



7. 10. 



Cl. 2998, 2999, 3000, 6528, 

 6527,6531,3003. 



