70 



THERM OSCOPE 



y 



galvanometer is covered with glass, f, connected 

 with the apparatus by conducting wires, h g. The 

 galvanometer needle is suspended by a single 



Fig. 13. 



flexible fibre of silk. The intensity of the thermo- 

 electric excitation is denoted by the extent of 

 divergency of the needle. The heat of the body 



