DETEKMIXATIOX OF TUE TilEliMAI, CONUUCTl VITY OK MAUBLE. ^77 



wc take 6',= 3, and we obtain 

 S, ^ :3.012 



Again making S', = 3.012 in — ^g _ . , we got the same value 



Si = 3.Ul2 

 so that this which is the ealculated vahio <jf S^ from /S, must Ije 

 correct to a unit in tlie hist figure. But 



■li — /.I (J .) -<»■ 



J. Oj- 



and the mean value of two specific heats f(jr marble obtained by 

 Kegnault is .21287.* Assuming this value and the mean value uf 

 iS'i as determined from ai and ß\ = 3.001, we obtain 

 K = .007o4 c.g.s. centigrade. 



Experiment on May 14 — 1888. The temjjeratures were deter- 

 mined by the method of deflection. 



Second Speciraen Experiment Zero point —347. 



Period ^^ 40 minutes 14th Cycle 



Zero of Temperature =50° c. 



• See Clark's Constante of Nature, Specific Heat Table. 



