880 



Voltaic Electricity. Section 3: Electro-Magnetic Current Measurements. 



No. 81 322 



61 329. l : r>. 



61 327. 1 = 5. 



50,124. Transparent Galvanometer Scale, 2 m long, of ground glass, in wood frame, divided 

 every ."> centimetres, with lugs for suspending on the ceiling, Figure on p. 21. . 



Tiiis scale is suspended at a distance of about 2 rn from the galvanometer. U'itli its aid it is 

 possible to iiiTiiiifff the ^alvanoinctcr and scale in front of the audience. 



61.322. School Galvanometer (Nobili Multiplier), Figure, with astatic needle and detachable 

 oil damping, with one coil having thick winding; to he used mainly for thermal currents. 

 with pointer reading (cf. (Jan.- Rein.. Fig. 830) 



61.323. -- idem, with one coil having two windings of different resistance, for thermal 



and induction currents 



61,324. -- idem, with two interchangeable coils (if different resistance, for thermal and 

 induction currents . 



s. d. 

 0. 17.0 



3. O.Oj 

 3. 10.0 



4. 0. 



ci. 23:c.' 



2348, 2:ill. 



