Lags of Thermometers. 

 Mercury Cylinder. 



When G = '028 the steady lag is -65° C. 

 „ G = -185 „ „ ' „ „4°-30C. 



The lags in the three cases considered are : 



Li = -4-30-5-65 £- 0430 ' + 4-95 e -' omt \ 

 L 9 = 4-30-4-35 e -° mt -4:-95 e -° mt \ . 



L 3 = -65-4-35 



■-1-30*-- 



043(tt' 



59' 



(37) 



(38) 

 (39) 













Fig. 1. 















*?5 









LAG 5 



1. 



1 FOR M^RCIIRY S 



• 



PHERE. 



FfciJ 



/ 



(nr 























A 



.it 













G = +oi 



8. 







G'=I8S 







> 



i 

 i 



io.|,T 













r-r^^ 















1 





) 



6 



> 



IS 



.0 



IS 









// 







J 



J 

 {- 



.__ 

























-?r 





G*~oi 



B 



"^^^s^^. 











































: 



180 _ . _ 240 



Time in Seconds. 



300/ 



Alcohol Cylinder. 



When G = -028 the steady lag is *36° C. 



G = *185 



2-39° C. 



The lags in the three cases considered are : 



L 1= -2-39-5-25 e -° 15St + 2'75 e -^ u \ 

 L 2 = 2-39-4-67 <?- 0758 '-2'75 e-° 758t \ 



L 3 =-36-4-67e-o758^_-72^--° ; 



58*' 



(40) 

 (41) 

 (42) 



