MARYLAND GEOLOGICAL SURVEY 



285 



fITSec.-ft.] [ ~ 



160,000 



JAN. 

 10 20 



FEB. 

 10 20 



MAR. 

 10 20 



APR. 

 10 20 



MAY 

 10 20 



JUNE 

 10 20 



JULY 

 10 20 



AUG. 



10 20 



SEPT. 

 10 20 



OCT. 

 10 20 



NOV. 

 10 20 



DEC. 

 10 20 



140,000 

































































120,000 

































































100,000 

































































80,000 











1 



II 





















































60,000 































































40,000 









f 









































1 













20,000 1 



!1 





1 















































1 



°l 







r 



1 















1 





























IT* 



Fig. 21. Discbarge of the Susquehanna River at Harrisburg, Pa., during 1899. 



^Sec.-ft,; " 



160,000 

 140,000 



JAN. 

 10 20 



FEB. 

 10 20 



MAR 

 10 20 



APR. 

 10 20 



MAY 

 10 20 



JUNE 

 10 20 



JULY 

 10 20 



AUG. 

 10 20 



SEPT 

 10 20 



OCT 

 10 20 



NOV. 

 10 20 



DEC. 

 10 20 





1 









Jo 



}|r? 





















































5 







120,000 



100,000 



80,000 















































































































































































































60,000 

































































40,000 

















































l 



i 



20,000 



















































I 



o| 



























































J 



Fig. 22. Discharge of the Susquehanna River at Harrisburg, Pa., during 1900. 



