62 



Professors Ayrton and Perry on tin 









03 





00 „Q Sh 



c3 '3 - O 



*£ * P 









8, 





• Ph ~ be 



* p .2 









4 



© 



CO 

 CM 





bo -a 



g-~- 



3 



o 









O (5 o 



O OS 

 ^ -© 









©" 





. lO 









ft 













s 













§©£? 









co 





O CC ■* CO 

 CM fr-© 









i— i 





HlOrt 









00 













CO 





& 



.' *■< • 



o 









V— , 'v— , 



S3 = O 



o 









© 





& 



© 



© 



© 



© © g 



o 









© 



o 







































© 



© 



© 



© 



© © © 



s §0 













Q 































© 











kQ 



© 



o 



© 



© 



© 



© © 8 





© 









© 



£ 















© 



Si 









CM CD 



CO l-H 















fr- o 



^W 



© 





CO 





© rH 



fr * 



© 



CM 



— H 



© 



00 © © 







© 



CM 







H 





r-i 











-^> 



CO 









© (M 





P L, 



o 









lO r-H 



1 § w 



<M 





00 





fr- © 



o 





vo 





O T-l 



,® be n 



© 



CM 



co 



CO 



TtH © © 



o ° 





co 

 © 



CM 











o 









o 





| §w 



o 









o o 



OS 



CO 



CO 



T— t 





© oo 



L- i—i 



=2 ^o 



© 



CM 



tH 



CM 



CO O r-4 





© 



CO 











lO 



OJ 







« 



© 









O 



Carbon 



oxide, 



00. 



lO 









fr- LO 



r- 



CM 



in 





co r— 



© 



© 



© 

 © 

 © 



CM 



T— 1 



vO 

 © 



© o o 



H © © 







o 



8 



CM 



CM 





8 © 



co co 





TJH 





© 



vO 



© CM r^ 



© 



i — i 



l^. 



© 



r- o o 







© 



00 







, ►*» 





T— 1 









w 







rr*-^ 



r- *— - 



/-^r— •*--, — - . 





o 



O 



c : 



© • 



3 : 3 



«<-< 







3 



ja : 



a) . 

 ► : 



c : 

 o : 



o • ^ 

 s"1"Sjq 









© 



o : 



bo : 



>* 



o 







© 



: 





f£>,3 JS » b> 



3 







B 



o 



.s 



-4J K 



© b 

 ^ c 



O *: 



11 



03 



Ph • 

 0) O 



-3 rP ^ J3 



O 03 © 



o ^ t, § 



% % P o 



55 P ^ 3 

 ® is _x o 



o g o; o o .j 



P 5 g g S^ 



*-> Cl, X c3 O c 







o 



w 



w 



o 



Ph O > 



o 



-Jl 













03 

 © bjo 



s" .a . 



bo ^.co 



«S SOS 

 ° O© 



















• - l\ 



















3 lO T3 









« 



o CO « 









TJ 



*- P 3 



o 







P 

 O 



Ph 



3 OD H; 



So fac.2 



e 







*3 



o 











o es _ g 









T* 



^ ^ 3 









^ 



o ..-_- .a 









CO 



-^ ^H 









CO 



*« co . 









CM 



^5 :go 

















o 



3 TTl I— 



OOlO +$ 

 1^ rM — i CO 









© 









© 



CO CO ■* _i_ 

 CM ^-i CD + 



6-^ 









00 

 00 



si 



C X! 



>o 



iO 







W^^-v- 



©I 



to 

 © 



© 



© 



© © 



kiWB( 



















CO 00 



p - 







(M 



co co 



© «> 



o 





fr- 



o o 



^w 



© 





00 



© © 





6 



53 



r-H 



© © 







g 







-l-s 



© 







© © 



p ^ 



CM 





^H 



co co 



© S- « 



6 Q 



8 

 © 



s 



S3 



CO 

 op 



rW 



© o 

 © © 

 © © 



, 



,_, 







CM CO 





CO 



o 

 © 



CO 



fr- 



CO 

 00 



8 8 

 © © 



« bt Q 



© 



C^l 



,—i 



© © 



r^ 





s 







o 









-tH fr- 



P oT . 



© 







lO © 



»o 



CM 



CO 



CM vo 



CM 



© 



co 



T-l OX 



Q 



© 



o 

 © 





© © 



^ 



CO 







© CO 





fr- 







CO l^ 



bX) . 

 O PI 



rjj l-H 



OO 



(M 



© 



© CO 



1 — 1 





fr- 



© rH 



© 



© 



LO 



CO 



© © 



t"» 





rH 







H 













o • 



© • 



a 



p : 1r : 





£ • 



? : 



0> 



> 



S : o : 



> : '. 





© : 



© : 



he • 



&c :-£ : 





ID . 



o \ 



.2 ' 



»-< : 



h- 



^ : £ j 





Ph : 



o 

 © * 



■1§N 



ST o o .2 





<u bx 



11 



03 O 



1 - 



© £ 



1 P 



f-. +3 06 



e P <d 3 





o 



to 4 " 



M ^ 



j< cS O o 

 O r* 



