twenty-two nests of the species ; nearly three times the 

 number of nests recorded for an3' other 3'ear. A certain 

 entensive thicket, reaching for some distance along the 

 railroad track, and adjacent to extensive swamps, 

 seemed to have a special attraction for the birds, since 

 here, within a radius of fifty yards, were found eleven 

 nests. The next 3'ear the same thicket, on careful 

 search, yielded only three or four nests. The cause for 

 the remarkable abundance during this particular \^ear is 

 not ver\^ apparent, since the extreme mildness of the 

 previous winter should have had but an inconsiderable 

 influence upon a species so strictly migratory as the 

 Rose-breasted Grosbeak. 



Lake Licking — A Contribution to the Buried 

 Drainage of Ohio. By W. G. Tight, Granville. 



Licking Co. is situated within the drifted area of 

 Ohio and almost entirely within the outcrop of the 

 Waverly Group of the Sub-carboniferous rock sj'stem. 

 Its topograph3'^ is generally level although in the north- 

 eastern, eastern and south-eastern portions the hills 

 stand relatively higher on account of the fact that the 

 valleys are not filled so completely with the drift. All 

 of the present drainage of the County sets towards 

 the centre at Newark and then runs due east as the 

 Licking river to the County line where it bends to the 

 south-east and enters the Muskingum at Zanesville. 



The topography is made upof threeelements. First: 

 The original preglacial topography produced upon the 

 monoclinal rock structure of the Waverly b\' preglacial 

 erosion. Second : The changes produced bj^ the de- 

 positions of the glacial period. (Including moraines, 

 terraces and all accompaning actions.) Third: The 

 effects of erosion since glacial time. 



The combination of these three elements gives a 

 varied and pleasing landscape but one offering many 

 perplexing problems of Quaternary geology. 



17 



