Proceedings of the Ohio State Academy of Science 237 



eastward it flattens out and disappears within about one- fourth 

 mile of the Rocky river channel. Inland from this I found no 

 evidence of a beach, a condition due to the very low gradient 

 and the consequent wide zone of shallow water. About one- 

 half mile north of the west end of this barrier there is another 

 ridge, terminating near the creek in a slightly recurved spit, ap- 

 parently subaqueous in origin but later' marking the shore line for 

 a relatively brief period, after which it was gradually isolated 

 by the development from the western shoulder of the embay- 

 ment of still another spit. 



The road extending southeast from North Olmsted trav- 

 erses this bar which tended further to shut out the Rocky river 

 embayment ; this bar is coarser in texture than the bar above de- 

 scribed, and encloses in its rear several lagoons which were de- 

 veloped consecutively from west to east by the hooked growth of 

 spits as the bar extended farther across the bay. This ridge 

 continues to the edge of the present channel of Rocky river, and 

 there is some evidence of it eastward from the river. 



Returning to the shoulder in the main shore line at North 

 Olmsted, we find at the present time a pronounced clifif, swing- 

 ing at first slightly to the south and then continuing directly east. 

 Between this and the bar last described, there are several marsh 

 areas or lagoons, decreasing in number and size eastward, and 

 each representing an inward bend or temporary hook-terminus 

 of the spit. While this originated as a spit growing into the bay, 

 it came in time to be a typical wave-constructed beach ; its front 

 slope is gentle, rising in altitude from lo to 14 feet; the back 

 slope is nowhere very pronounced, owing to the leveling-up of 

 the lagoon depressions. The beach averages about 10 rods in 

 width ; in places, however, the back slope is so slight as to make 

 exact measurement impossible. Over the first mile of this beach, 

 a highway extends, branching at the river into one road running 

 directly north and another skirting the river channel ; this latter 

 road continues on a slight gravel ridge, the most pronounced 

 phase of which lies to the east of the highway next to the river 

 cliflf. It is probable, however, that the complete development of 

 the shore-ridge in this locality may not now appear for the rea- 



