N"0. 60195*. 



Electrometers. 



801 



60 186. 1 : 6. 



60 189. 



60195. 



3. 



60 195 a. 



5. 



60.187. Paper Tube Electroscope (Weinhold's) (W. D., Fig. 433 [406]) .......... 



60.188. 2 Cylindrical Wire Baskets, for screwing on Electroscope No. 60,175 to 60,180 (W. 

 D., p. 668 [609]), and 1 Hollow Sphere on insulating handle 



60.189. Fork Electroscope (Fischer's), Figure (Fr. phys. Techn. II, 1, Fig. 14) .... 



60.190. Electrometer, Szymansky's, Figure, giving deflections to 180 (Ztschr. f. d. phys. 

 u. chem. U. 4, p. 60), with gilt metal parts 



60.191. Portable Electrometer, for measuring atmospheric electricity, as suggested by Exner, 

 Figure (M. P. 9 th edn., Ill, Fig. 259), in case ....'. 



60,191 a. Flame Collector for above, with supports in walking stick form 



60.192. Portable Electrometer (Elster and Geitel's), with mirror for reading without parallax 

 (M. P. 10 th edn., IV, 1, Fig. 112) -. 



60.193. Tangent Electrometer (Carl's), with condenser (Fr. phys. Techn. II, 1, Figs. 22 and 23) 



60.194. 2 Glass Rods with glass balls, for enabling the Griinsehl Pole Balance No. 60,135 to 

 be used also as an absolute electrometer 



60.195. Electrometer (Dellmann's) (M. P. 9 th edn., Ill, Fig. 177), Figure 



60,195 a. Electrometer (Kohlrausch's), F i g u r e (M. P. 9 th edn., Ill, Fig. 178), with magni- 

 fying glass reading, platinum or <|ii;ntz suspension 



s. d. 

 0.12.0 



0.12.0 

 0.16.0 



2.10.0 



2. 5.0 

 1.10.0 



3. 0. 

 2.10.0 



0. 8.0 

 2.14.0 



5. 10. 



il. :,B1R, 3R9, 5810,5815, 



2076, 2080. 51 



