64 JOURNAL OF THE 



30. Oven-bird {Seiuriis aitrocapilliis). One nest was 

 found in Bertie county in 1892 by myself. 



31. Hooded Warbler {Sylvania miirata). I found one 

 nest in' 1888, and since that time a great many nests have 

 been found by my cousin and myself in Bertie county. 

 Not reported from any other section. 



32. Winter Wren [Troglodytes hienialis). Two nests 

 were found by Cairns on the Black mountains in the 

 spring- of 1892. 



^2)' Golden-crowned Kinglet [Regulus satrapa). 

 Reported breeding on Black mountains by Cairns. 



34. Olive-backed Thrush {Tiirdus iistnlatiis szvain- 

 sonii). One nest has been reported, it being found on 

 Black mountains bv Cairns. 



CONTRIBrXIONS FROM GEOLOGICAL DEPARTMENT UNIVERSITY OF NORTH CAROLINA. 



No. I. 



AN EXAMPLE OF RIVER ADJUSTMENT. 



BY CHARLES BASKERVILLE AND R. H. MITCHELL. 



One could scarceh- find an example which more fully 

 illustrates the principles involved in determining the 

 courses of streams than the Jackson River in western Vir- 

 ginia. This is a small stream rising near Monterey, High- 

 land count)', flowing south-west through Bath into the 

 James River at Covington, Alleghany county. 



The existing topography is the result of the denudation 

 following upon the great Permian deformation, which 

 gave rise to the main ranges of the Appalachians. From 



