

Memoirs Natior 

















• 













S 



econd Memoir, P|. 27. 









Spine 



index. 







Number of sh^Us used. 



Constants for re- 

 duction to 1,000. 



Classes. 





Classes 



22 



0.27 



0.32 



0.37 



0.42 



0.47 



0.52 



0.57 



0.62 



Total. 



Smooth 

 shells 

 (0.5) 

 class. 



Distance 

 between 



spines 

 and spine 



index. 



Spine 

 index. 



Height 

 of spmes, 

 and dis- 

 tance 

 b^ween 

 spines. 





/ 



Powell River: 



Group 1 



Group 2 



Groups 



Group 4 



Group 5 



Total 



:. 4 

 .2 

 .5 

 ■.5 



"si's" 



62.4 

 140.8 

 235 



36 







30 

















Powell River: > 



1 Group. 



2 Group. 



3 Group. 



4 Group. 



5 Group. 



Total. 



Clinch River: 



6 Group. 



7 Group. 



8 Group. 



9 Group. 



10 Group. 



11 Group. 



Total. 



Holston River: 



12 Group. 



13 Group. 



14 Group. 



15 Group. 



16 Group. 



17 Group. 



18 Group. 



Total. 



Nolichucky River: 



19 Group. 



20 Group. 



Total. 



French Broad River: 



21 Group. 



Tennessee River: 



22 Group. 



23 Group. 



24 Group. 



25 Group. 



26 Group. 



27 Group. 



Total. 



PoweU River: 1 



1 Group. 



2 Group. 



3 Group. 



4 Group. 



5 Group. 



Total. 



Clinch River: 



6 Group. 



7 Group. 



8 Group. 



9 Group. 



10 Group. 



11 Group. 



Total. 



Holston River: 



12 Group. 



13 Group. 



14 Group. 



15 Group. 



16 Group. 



17 Group. 



18 Group. 



Total. 



Nolichucky River: 



19 Group. 



20 Group. 



Total. 



French Broad River: 



21 Group. 



Tennessee River: 



22 Group. 



23 Group. 



24 Group. 



25 Group. 



26 Group. 



27 Group. 



Total. 



Total in all rivers. 







1 





III 1 ! 











7.8 

 38.4 

 42.5 



1 







Ill 1 



1 











6.4 

 2.5 









1 ' 1 1 



[ 















1 < 1 1 



j 















i 



' 









i.6 



152. 4 



30 



2.4 1 



1.2 



{111 1 



\ I 1 







1 1 



' 1 1 







Clinch River: 

 Group 6 

















1 1 1 













Group 7 l-S 



Group 8 ?• 2 



Group 9 ?-5 



16.4 

 12.8 



319 

 50.4 



142.8 









16.4 





1 1 ' 













25.6 

 44 



10.8 

 91.8 









6.4 6.4 



1 



1 













11 

 3.6 



20.4 



5.5 







1 















^ 



3.6 





1 1 1 " 









s 



Group 11 



Total 



Holston River: 

 Group 12 



u 





1 1 1 1 :': '""■"! 





• 









' ■ 





H 



g 



!.5 



115.7 



31.2 



6.5 



1.3 



2.6 



1.3 1.3 



1 











» 



A 































1 1 1 











Group 13 , 



Group 14 , 



Group 15 



Groupie 



Group 17 



Group 18 



Total 



Nolichucky River 



Groupie 



Group 20 



Total 



French Broad Ri-^ 

 Group 21 



Tennessee River: 



Group 22 



Group 23 



Group 24 



Group 25 



Group 26 



Group 27 



5.1 



..6 

 J 



).8 

 (.2 



) 



8.2 

 51.2 

 2S.8 

 59.2 

 71.4 

 200 













1 1 1 





y 



§ 



6.4 











III 1 





g 



"S 











111 " 1 





CD 















Ill 1 





2 



OJ 



10.2 

 30 



5.1 



S 



10.2 





5.1 



::::::::::::i : : J i" ;;:; :i 





s 







1 1 1 1 



















s 



3 



fi.4 



70.2 



8.1 



1.8 



1.8 





9 





' 1 1 





c 







1 







"o 



3.6 

 2.4 



123. 3 

 356.4 































66 



26.4 



13.2 



6.6 











1 







& 



'fl 











1 







H 



4.8 



277.2 



44 



17.6 



8.8 



4.4 











1 . .1 







^ 











1 





pi 





4 



273 



126 







7 











1 



1 















1 











1.4 

 5.4 

 0.8 

 1.8 

 3.6 

 4 



265.2 

 269.7 

 414.4 

 314.6 

 412.3 

 490 



5.1 

 104.4 

 184.8 

 22s. 8 

 303. S 

 137.2 



5.1 

 26.1 

 11.2 

 28.6 

 21.7 

 39.2 















1 



















1 



1" ■■ 









5.6 











1 



....1 

















1 























1 













19.6 



1 

































2 



339.2 



120 



16 



3.2 



.1 









1 1 1 





■^"''""- 











1 









Powell River: 



1 



'"3"" 



8 

 22 

 94 



1 





1 









669 

 192 

 136 

 196 



444 



641 



98 



8 



41 



34 



28 

 94 

 128 

 155 

 410 



36 



10.6 

 7.8 

 6.4 

 2.5 



1.5 

 5.2 

 7.4 

 5.1 

 2.3 







Group 2 :* 



Groups 1* 



Group 4 ;^ 















1 

 6 

 17 











^ 







1 



1 



























Total 

















3 



127 



25 



2 





1 



1 





1,637 



S22 



815 



1.2 



.6 







1 









Clinch River: 



Group 6 



Group 7 



Group 8 



Group 9 



Group 10 



Group 11 



Total 





















182 

 226 

 208 

 184 

 288 

 98 



182 

 165 



52 

 2 



14 







5.5 

 4.4 

 4.8 

 5.4 

 3.5 

 10.2 





f^ 



7 

 8 

 9 

 8 



1 



2 



58 



14 



14 









1 









61 

 156 

 182 

 274 



98 



16.4 

 6.4 

 5.5 

 3.6 



10.2 





? 



4 

 8 

 3 

 9 









1 



1 







2 

 1 

 2 



1 









Tl 



1 





1 



H 









1 



^ 













& 



5 



89 



24 



5 



1 



2 



1 1 1 1 



1,186 



415 



771 



1.3 



.8 









Holston River: 



Group 12 



Group 13 



Group 14 



Group 15 





















165 

 320 

 160 

 298 

 230 

 197 

 199 



162 

 75 

 3 

 91 

 94 

 1 



3 



245 

 157 

 207 

 136 

 196 

 199 



333.3 

 4.1 

 6.4 

 4.8 

 7.4 

 5.1 

 5 



6.1 

 3.1 

 6.2 

 3.4 

 4.3 

 5.1 

 5 



a' 





1 



4 

 



7 



2 



8 

 6 

 8 

 14 

 40 

















1^ 



8 



1 

















i 















3 

















lO 



Group 16 -,, 



Group 17 ;" 



2 

 6 



1 

 1 



2 





1 



1 



i 



Z 



1 





Group 18 



Total 



Nolichucky Rive^ 







i 









^ 



6 



78 



9 



2 



2 



1 



1 1 



1,569 



426 



1,143 



.9 



.6 



^ 









J2 

 <3 



8 



9 



54 







1 



1 



73 

 152 





73 

 152 



13.7 

 6.6 



13.7 

 6.6 



O 



Group 19 



10 



4 



2 



1 



1 



1 _ . 





€ 



® 



Group 20 









^ 



2 



63 



10 



4 



2 



1 



1 1 1 



225 





I 225 



4.4 



4.4 





f-( 



Total 



French Broad Ri 

 Group 21 









(N 



2 



39 



18 



1 











143 





143 



7 



7 



"-1 

 < 















f^ 





Tennessee River: 



4 



52 

 31 

 74 

 11 

 19 

 25 



1 

 12 

 33 



8 

 14 



7 



1 

 3 

 2 

 1 



1 

 2 



1 

 1 







199 



115 



180 



35 



46 



51 



1 



198 

 115 

 180 

 35 

 46 

 51 



5.1 

 8.7 

 5.6 

 28.6 

 21.7 

 19.6 



5 



8.7 



5.6 



28.6 



21.7 



19.6 



CO 





Group 22 ^^ 



Group 23.... i' 

 Group 24.... H 

 Group 25.... H 

 Group 26 1? 













1 1 























i 













! 1 













Group 27 i 



Total ^ 





1 









5 



212 



75 



10 



2 



1 1 1 



626 





1 625 



1.6 



1.6 















Total in all 



1 1 





! i 1 



5,386 



1,664 



1 3, 722 











' 1 



"" 1 1 "" 1 1 

































1/' 





