^ 







1 



into 

 1» 







w 



M 

 7M 



eso 



(M 

 SO 

 MO 



7"^ 









Plate 14 



Height of Spines 



powell river 



Gfioupa 1—5 









































Grox^p 2 , 





T 











Grou^4. 





J 









Groi^p S.^ «. ^ ^ ^ 





i 









II 



'1 

















1 

















\ 1 



















M 



















\ 





/ 



K 













\ 







V\ 













1\ 





k'^ 















, 1 





/ ^. 



\ 











\l 



\\ 



/ / 







\ 









t 



/\ 



■ / 

 / 



\ 



^' 



\ \ 









^ ' 





\ 





■'<>-N 









r 







\ 





^N 









0. 



0.8 1.3 I.e 2.5 i6 33 i8 ii \ 



iBGHT OF Spines IN WM. s.*-™*. >=„„.. ^.z. 1 



Plate 15 



Height or Spimes 



CLINCH RIVER 



1000 



1 



\ 















Plate 16 



Height of Spines 

 holsron river system 



goo 



850 

 600 



1 



4— 















i 















1 



-4 













\ 

 \ 

















Gf^ipi? 





700 



■SBO 

 600 

 550 

 5U 

 4,'iO 



\ 

 -l_ 























1 















Oroup 17. ^,^ 





1 















Gr^fs. 1 j 



1 

 — \ — 























1 























I 1 y 





















400 

 350 

 300 

 230 

 200 

 ^150 



en 



feioo 



mOO 



3 





























/k- 



1 















'c\ 



\ ^r ^ 



A--^ 14 

















\i 





/ 



'. 

















V 



; ' 



/ 



\ 

















V 



~i ^ 





\ \ 



\\ 















tx. 





1 



r^f\" 



_s|r^ 



\ 













. A 



''/ 



\ 

















i 



/ 



\ 



1) 





~^ 

















3 a« 1,5 IS Z.S Z6 Sj 18 45 4.8 S3 5i6 1 



Heightof Spines IN /)//!/. ,.„-».-» 1 



