108 



DBS. J. A. HARKER AND P. CHAPPUIS ON A 



a 



eo 



IT5 C 



CO 



oo 



M 

 J 



V 



i 



.s 

 5 







03 O 



F-C <N 



HI *o 

 f 



-S 











w 



CM 

 O 



_6-S 



S' S 



ll 



o g. 



^"B 

 S'g 



S* i. 



eS 60 



7 



8 



a 





 

 i 

 g 



e 



_= 



a 



o 







3 

 



X. 



ng experiment. 

 oximately. 



d 

 ap 



ge of temperat 

 1 centim. = -0 



o *O T3 



3 II! 



> 







5 3 5 



^^ o .^ hn 



si 



. 



c e 







M 



1 





be. 



ometer bulb 



he 



o 



= 



^ 



1 1 



g 

 .2-5 



l 





s 



,- 



ri S S 



.go o 



| co ^ 



d) -JS 



_-^>>o_>>:_^:i r;.-s C_ o o> h b 

 * ^ J9 S1^^ S S^.2.2 a> S .S 



I 



,J3 



,c; 9 T 1 T 1 S 9 >< ?P'?T'T l1 7 <r r'T'T' ooo< ? < ? O( ?P < -^ 



I 1 



C 00 -H 50 " 



Cl ~ . CO t* 



* ) 



CO O1 CO _ 



t* ooco o 2 - - _.,.__ ,,, 



<M CO CO (MfMCOCOCOCOCOCOCOCO^^-^-^^.^^^^ 



0> O 



I I 



I 1 



COQO CO S ^lO^CO' 



coo o Sb i icpff^<N- 



CO CO CO t- ^ *C* rH ""^ ( 



hfi 00 CO *O >rM *^ "^ ^5 ^5 O-1 C*l ^^ "^t* tO ^O ^~^ 'H CO CO ^^ "^ ^* "^ tO 



<MCO co c^c^cocococococococo^h^^^^-^-^-^^ 



o 



t* OT 



O 00 "* .S ^ ' 



O Ci OO cS CO 



ci^ t' A CO ^^ X X " As * " cX X T*H T*H /V^ A% i-vi Aa eX eX cX cf\ X 



^ i t I-H g ^H^-tT-H I -HrHi-Hri(M(M<MC^C^(MlM<M 



W) + + + 



^ & 



.a 1 



eS .5 



if ?? ? I 



t 1 * O-1 CO CO CO Ci O5 H ^* CO CO ^^ ^* Oi Oi ^^ "^ ^^ r^ C^ C^ CO 



(MCO CO _w <M(M(MIMCOCOeOCOCOCOCOCO-*-<f<-^<-<*<-^-*->*< 



00 <M <M <N S* 00 ' 



g Sg > 



g - 5 S S - O 



I 



i o >< 

 t- t- J/J 



O -i <M 



t- 



t~OOODOOOOOOOOOOOOOOOOCT>O> 



