28 I'rocccdiiHjs of the Ohio State /Icadciiiy of Science. 



Hibiscus and Shrub zones of the southwestern border and 

 islands are wanting but in their places are the Scirpus and 

 grass zones of lesser height, these are followed by the weed belt 

 in which because of the lack of definite organization among tlie 

 plants, w-ell defined layering is wanting. The weed zone is very 

 likely due to to the close proximity of the cultivated fields and 

 to the fact that these mud flats are pastured. 



Honey Creek is one of the principal feeders of the lake, 

 but the water is generally so sluggish that but little current is 

 perceptible and the channel is so narrow that the lake receives 

 but little water from this source. 



The other important tributary to the lake is the southwest 

 feeder near Millersport, but this is in a condition similar to that 

 of Honey Creek. The principal source of water supply seems 

 to be that derived directly from rainfall. Engineer Bootin 

 complains that it is difficult to keep the water level uniform. It 

 falls very rapidly during the summer ; as much as 4-5 inches in 

 a week, altho but little water is permitted to run out. 



The long narrow southeastern lobe of the lake from the 

 mouth of Honey Creek to Thornville Station at the southeastern 

 extremity is rapidly being filled with vegetation and presents the 

 aspect of a marsh with but few clear areas. Thru its center 

 from northwest to southeast is a boat channel but 3-5 feet wide 

 and not more than 3 feet deep. The marsh includes several 

 small low islands, a few of the larger with trees. Thornville 

 Station is built on a little promontory between two lobes of the 

 marsh. The western one extends to the Zanesville and Western 

 tracks, where it ends in a wheat field. The eastern one is 

 shorter, extending east to the Shawnee Branch of the Zanes- 

 ville and Western railroad, and south to the southern limits of 

 the town. The vegetation of the western lobe is mostly Pota- 

 mogeton sp., Ceratophyllum demersum, Batrachium tricophyllum, 

 Lemna trisulca and Spirodela polyrhiza with Typha lati folia along 

 the shore. The eastern lobe bears a dense mass of Nymphaea 

 advena, with Scirpus lacustris and Potamogeton sp. The lobe 

 is fringed by willows. 



