Lever ett — Ohservatio?is on Craig ton Lake. 



435 



Fig. 1. 



Fig. 1. Map of Craigton Lake, Ohio, and its outlets. Topography taken 

 from U, S. Geological Survey topographic sheets (West Salem and Loudon- 

 ville). Numerals indicate altitudes above sea-level. 



Am. Jour. Sci. — Fourth Series, Vol. XXXVIII, No. 227. — November, 1914. 

 30 



