Mfff'hhif*. fiffj. 

 Tut-ns (\>i' Ih'/tlh' 



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 UuUoin 



Hall om> tempertUiifrt' 

 . VVi. of Thi^nHomfdf^r 

 CofH'eff'd /rnipf'ralu-re 



DnfL 



I'f tftcf rrt' ilfiml\}C tit' (•"'d^^'^ ,f.O^<^Y 



SOUNDING WIRE. 



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