ON THE THERMAL CONDUCTITITIES OF CERTAIN ROCKS. 



141 



J) « o 

 > o W 



00 t- Ci CO I— 



o o o o o 



■**O00 lOt— CO n »j4 



C^OC: i IQ IS i o o , »o 



f-Hi-i^O oooo o 



oooo 1 oo'oo ' o 



> tH 



WHWH I ,— ^ I i-H rH 





to » 



« * 



5- 



HWOhh 



00 lO CO 05 



cosmos 



o >o 



co cn 



00 



o 



CN 



co 



■* O CN i— I CD 

 00 00 OS Cft CO 

 O O O O O 



o © o o o 



CO os <N O 

 >o to io »o 



c o o o 

 oooo 



CS ■* 00 t- 



<N CO , -*l CO 



oooo 

 oo'oo 



00 

 IN 



o 

 o 



be S ® n . 



" O 



co 



© 



CO 





■+3 



o 





a 1 " 



02 





^** O co co 



lOCOCOOiOiOlOiloHCONHOCOCOCTJt'ClNtoCONio 



OOOO'OOOwOOOOOO*— 'OOOO wO o 2- 



«• 



mcCCSCJ C O. Oc.iO>00)00!HcsiHHi-l-*5qHHC<l 

 © © © © © © © -w'O © © © © 6 w© © O © wO © S 



CO -P 

 & u 



•& ' — ' 



•i-H 5 t-j <D 



CS O CD.Q 



cb — *i n 



g to 



CO 

 CN 



IN 

 CN 



cfci 



P£ 



•*«5lNCDiOO>ON«'-'CSOCS|l>raO'*OHS;-HTl<2 

 ^wio«ipiot- 1 ^ | coepcococo-!(<-cpb--*-*rjCo-*^ 

 CN IN CN IN CN CN CN wCN CN CN CN (N CN v-^CN CN CN CN v^CN IN 2/ 



CO 



<u 



o 

 o 



a 



CD 



o 



CD 



02 



CD 



S © 

 cd "£3 



" O 



^-, a : o 



§393- 



M CD ^! CD 



^3 S3 



IS CD 'T 1 O 

 „02.2oQ 



tf_| r^H C4_| 



o ,« 



CD* 2 









a- 



3 s 



in C 



CD 



OS 



O 



cd ^ : 



.s a m 



«s s h. s 



OfntnO 



C3 



g 



O 



O 





 c« 



VI 



o 



o 



3 s 



cS 

 H 

 be 



£4 



00 CD 

 CO 



Cd CD 

 ^y^s C3 



CD 



-a 



O 



o 



i 



p CD CD 



-« «M 

 -=3=4-1 



PJ W CD 



fl 2 " 

 ji 



n 



J2 "S 



CD 

 O 

 C 



a 

 cS 



a 



o 



hfl 



a 



cS 



ja a 



CD 



d 



O 



a. 



03 



CD g 



CO O 







3 



b ^ 



cS c3 

 cr 1 cr 1 



§ 3 

 cS cj 



cd 

 u 



H 



W 



a 



o 



■a 



o 



T3 



CD 



CI 



bo 



CD 

 



CB 



ffl O « 



CO CD 



co o 



o 



a cd 

 cs +j 



u n 

 eg cS 

 



CPC? 



n 

 C5 



C3 CD 



o 



CO n 

 ^J cS 



