

Memoirs National Aca 



demy 



3f Sciences, 



XII. 























Second Memoir, PI. 25. 











Number of 

 shells used. 



Constants for 



reduction of 



totals to 1,000. 



Classes. 





CI 



issos 



7.5 



S.5 



9.5 



10.5 



11.5 



87 



0.89 



0.91 



0.93 



0.95 



Index. 



Diivmo- 

 tor of 

 shell. 



Inde.x. 



Diame- 

 ter. 











PowoU River: 

 Gropp 1 





1.5 



1,3.5 



51 



72 



1.5 

 1.4 



3 



5.2 



7.4 



3 





1.5 











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. 

 10 Group. 



17 Group. 



18 Group. 



Total. 



Nolichuclcy 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. 



J 



Powell River: 



1 Group. 



2 Group. 



3 Group. 



4 Group. 



5 Group. 



Total. 



Clinch Riven 



6 Group. 



7 Group. 



8 Group. 



9 Group. 



10 Group. 



11 Group. 



Total. 



Holston River: 



12 Group. 



13 Group. 



14 Group. 



15 Group. 

 10 Group. 



17 Group. 



18 Group. 



Total. 



Nolichueky 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 shells used. 







Group 2 









1 







Group 3 







i 1 

























i ; 1 























1 





2.3 



18.4 



!. 5 























Total 



























.0 



5.4 



21 



33.6 





1.8 



1.8 



.0 





! 









Clinch River: 













.6 

 .4 



27.5 

 13.2 



4.8 



1 

























4.4 

 24 



1 







1 









Group 8 







4.8 



9.0 



4.8 









1 







w 





1 















•0 



Group 10 



1 













1 







j 





• 



c3 



Group 11 



Total 



1 



in 9 





30.6 







j 







1 





H 





1 1 *" 







' 











o 



1 



l.G 



1.6 



7.2 



!.5 



8.1 



.9 









1 





o* 





Holston River: 

 Group 12 

















s 



1 









;.3 



1.1 







6.1 











1 



" 



Group 13 



1 







0.2 



3.1 







' ' ' 1 



T-1 



Grou p 1 1 



1 















^ 



? 



Group 15 



1 





3.4 

 17.2 

 15.3 



13.6 

 04.5 

 81.0 

 30 















o 







1 





.3 













1 



>" 



•r-l 



Group 17 



Group 18 



1 5.1 



1 



5.1 



5 





1 











7 



p; 





5 

















& 



■I 



Total 



1 ' * ' " 

















i::; 







.0 



1.2 



4.8 



2.5.8 





1.2 





.G 













n. 



-•n 



Nolichncky River: 

 Group 19 



















1 







1.3.7 

 184. 8 





















6 



•s 



Group 20 



G.'e' 19.8 



79.2 



85.8 













.1.. 







C 



^ 



Total 













' 



1 





4.4 1 13.2 



52.8 



57.2 



127.6 













j 









«-^ 



French Broad River: 

 frrni]T> 0} 













i 









1 













14 



















Tennessee River: 



n-rnnTi 22 































1 



5 



40 



CO 

 8.7 























Grnim 23 



1 



.1 











1 











Group "^4 



1 















i 











Group 25 



1 













i 1 



1 1. 









Group 20 



1 













1 1 



i 1 









Group 27 



1 









. 







1 1 









Total 



1 





1 







t 









1 



1.6 



12.8 



20.8 



. 7 











! 











Powell River: 



GrouT) 1 





9 



34 



48 





2 

 ...... 



2 

 1 





1 



661 

 192 

 136 

 1.85 

 402 



668 

 203 

 136 

 196 

 435 



1.5 

 5.2 

 7.4 

 5.4 

 2.5 



1.5 

 4.9 

 7.4 

 5.1 

 2.3 







Group 2 



1 









1 1 

















i 

















Group 5 



1 1 



1 



8 

















Total 

















! 1 9 



35 



56 





3 



3 





1 



1,576 



1,638 



.6 



.0 







Clinch River: 

 Group 6 



1 











5 

 3 

 1 









182 

 225 

 207 

 167 

 276 

 90 



197 

 220 

 207 

 184 

 288 

 98 



5.5 

 4.4 

 4.8 

 G 



3.6 

 10.4 



5.1 

 4.4 

 4.8 

 5.4 

 3.5 

 10.2 















1 

 5 











w 



Group 8 





1 



2 



1 











Group 9 









-q 



Group 10 



1 

















2 



T! 







1 





3 













d 



Total 



















P, 



1 2 2 



9 





9 



1 







1,153 



i,:co 



.9 



.8 



» 





Holston River: 

 Group 12 



1 1 













1 





1C5 

 320 

 ICO 

 298 

 230 

 197 

 199 



ICO 

 320 

 100 

 298 

 230 

 197 

 199 



G. 1 

 3.1 

 6.3 

 3.4 

 4.3 

 5.1 

 5.0 



0.3 

 3.1 

 0.3 

 3.4 

 4.3 

 5.1 

 5 





(>, 



Group 13 



1 ! ■ ' ■ 





2 



1 





G> 





Group 14 



1 1 











-? 







' ", ■"[ 



1 

 4 

 3 



4 

 15 

 16 

















a 



o 



Group in 



1 ' ""! 













P 



n 





1 



1 1 1 



1 1 











? 



3 



s* 



Group IS 







1 











§• 



«t! 



Total 



1 



1 1 2 



8 



43 





2 







1 





1,5C9 



1,SC4 



.0 



.0 







Nolichucky River: 

 Group 10 







"o 



1 





1 

 2S 















73 



152 



""e.'e' 



13.7 

 6.6 



i 





Group 20 



i 3 1 i2 



13 













152 





Total 













a 



o 



1 3 12 



13 



29 















152 



2:5 



6.6 



20.3 



R 



03 



French Broad River: 

 Group 21 



1 ■ 













2 







143 



143 



7 



7 



1' 



^N 



Tennessee River: 

 Group 22 



1 





















1 



1 



8 



12 



1 













199 

 115 

 180 



199 

 115 

 ISO 

 34. 

 46 

 50 



5 



8.7 



5.6 



"■"29"" 



5 



8.7 

 5.6 

 29.4 

 21.7 

 20 







Group 23 



i 





i 















Group 24 



[ 



















Group 2.5 



1 























Group 26 



t 



















34 







Group 27 i 



1 























Total 



1 





' 















1 



IS 



13 



i 











528 



624 



1.9 



1.0 







Total shells used 





















1 





...1 









5,121 



5,394 

















1 





1 

















17829°— 1 



4 

































