126 Journal of the Mitchell Society [April 



VOL. PAGE 



The resenes of resins and oleoresins (with C. H. 



Herty) 28 131 



DILLER, Joseph Silas, 



Origin of Paleotrochis 16 59 



DOLLY, David Hough, 



A bacteriologic study of the blank cartridge 24 23 



DUERDEN, James Edwin, 



A method of studying the septal sequence in Paleozoic 

 corals 19 32 



EATON, Henry Nelson, 



Micro-structure and probable origin of flint-like slate 



near Chapel Hill, North Carolina 24 i 



Micropegmatite at Chapel Hill 24 104 



Notes on the petrography of the granites of Chapel 



Hill, North Carolina 25 85 



EDWARDS, George Walter, 



Some new salts of camphoric acid 5 8 



FEILD, Alexander Littlejohn, 



The distribution of ammonia between water and 

 chloroform (with J. M. Bell) 27 119 



Notes on the birds of Chapel Hill, N. C. with parti- 

 cular reference to their migrations 28 16 



Electromotive force of silver nitrate concentration 

 cells (with J. M. Bell) 29 45 



FRY, William Henry, 



Topography of Fayetteville, North Carolina 26 123 



Some plutonic rocks of Chapel Hill 27 124 



Minerals of the Chapel Hill region 27 133 



GEORGE, Wesley Critz, 



Work at the Beaufort Laboratory 29 94 



GLENN, Marshall Renfro, 



Certain derivatives of trichlorethylidene-di-p-nitro- 

 phenamine (with A. S. Wheeler) 19 63 



GORE, Joshua Walker, 



A theory of tornadoes i 51 



Elevation of Chapel Hill i 82 



Report of the resident vice-president for the year 



i884-'85 2 3 



Latitude of Chapel Hill 2 32 



Report of the resident vice-president for the year 



i885-'86 3 3 



Note on electrical ageing of flour 23 29 



GRADY, Benjamin Franklin, 



Cyclones 3 145 



GRAVES, Ralph Henry, 



On the chord common to a parabola and the circle of 



curvature at any point 5 14 



On the focal chord of a parabola 5 15 



