Herbaria. 



All the species herein jjiven are represented by herbarium speci- 

 mens, with the exception of three or four which are so marked. Un- 

 less otherwise designated the specimens are to be found in the author's 

 herbarium. Specimens not in the author's herbarium are to be found 

 in the following : 



Herbarium of Dr. F. O. Jacobs, Columbus, O. 



" Prof. W. E Castle, Alexandria, O. 

 " Prof C. J. Herrick, Granville, O. 

 " Prof W. G. Tight, Granville, O. 

 " Prof. W. C. Werner, Columbus, O. 

 " Mr. W. H. Jones, Granville, O. 

 " Mr. E. V. Wilcox, Columbus, O. 

 " " Denison University and Granville Public School. 



Geology of Licking County. 



The area of the county is 685 square miles. The surface in gen- 

 eral is level in the western part, hilly and rugged in the eastern, while 

 in, the central part the hills are lower and much less rugged than in 

 the eastern. The drainage is toward the southeast, the Licking river 

 ' with its tributaries practically draining the entire county. The only 

 large body of water is the Licking Reservoir, a part of which is in 

 this county. Only a very few of the original swamps now remain. 

 The two principal swamps are the Cran berry Marsh near .Utica and 

 Pigeon Swamp, in the southwestern part of the county. Taking up 

 in greater detail the geological nature of the soil, etc., we find that in 

 the western part of the county the soil is. generally clay, with only a 

 few exposures of rock, which is of a shaly nature. Along the streams 

 we find a few deposits of the drift. In the central part the greatest 

 diversity is to be found. The valleys are here the broadest, with allu- 

 vial deposits many feet in thickness. The hills are from a few feet to 

 over an hundred in height. On the top of these the soil is a fine sand 

 with the broken fragments of the native sandstone rock lying imbed- 

 ded in it. ' The impurity of this sandstone makes the soil more fertile 

 than it would- otherwise be. 



