March, 1963 



Larimore & Smith: Fishes of Champaign County 



309 



tions near the periphery and for three 

 stations well within the county are avail- 

 able, table 1. The records show the size 

 of the streams at these stations and indi- 

 cate the amount of water drained from the 

 different watersheds. Calculated from fig- 



ures in table 1, the annual average dis- 

 charge of water per acre in the period 

 ending in 1957 was 0.7 cubic feet per 

 second (c.f.s.) for the Sangamon, Salt 

 Fork, and West Branch ; 0.6 c.f.s. for the 

 Kaskaskia ; and 1.0 c.f.s. for the Bone- 



Fig. 6. — Distribution of towns and water areas in Champaign County in the 1870's (in red) 

 and 1950's (in black). Drawn from map in Atlas of the State of Illinois (Anon. 1876) and U. S. 

 Geological Survey Quadrangles (editions 1950-1957). 



