176 ALPHABETICAL INDEX 



Duck, new to North American ftvuna— R. Ridgway. (P. 1881) 4G7 



Dudley, T. Earthquake at New Madrid, Missouri. (R. 1858) 109 



DtJFOUR, C. ; Kamtz. Scintillation of the stars. (R. 1861) 149 



Dxrafes, A., notes on fishes collected by, in Mexico — T. H. Bean. (P. 1879) __ 333 



DuGi:s, A., notes on fishes collected by, in Mexico — D. S. Jordan. (P. 1879). 333 



Duke of Northumberland, account of 390 



Duke of Northumberland, books presented by. (R. 1859) 110 



Dumas, J. B. Eulogy on A. A. De La Rive. (R. 1874) 28G 



Duncan, M. L. Translation of Holmgren on color-blindness. (R. 1877.) 323, 399 

 Dunkirk Society for the Encouragement of Sciences. Prize questions. (R. 



1865; R. 1873) 1 209,275 



Dunning, E. O. Antiquities in Tennessee. (R. 1870) 244 



Duplicate fishes distributed by Smithsonian— T. H. Bean. (P. 1880) 425 



Duplicate shells collected by the United States Exploring Expedition under C. 



Wilkes 193 



DuPRE, W. ; Henry, J. Earthquakes in North Carolina, 1874. (R. 1874) .. 286 



DuPREZ, F. Atmospheric electricity. (R. 1858) 109 



Dwellings and forts, Indian, in Indian Territory — W. E. Doyle. (R. 1876)-. 299 



Dyeing purple, ancient and modern. (R. 18G3) 187 



Earth- 

 chemistry of the— T. S. Hunt. (R. 1869) 228, 376 



electrical currents of the— C. Matteucci. (R. 1867; R. 1869) 215, 228 



figure of the— St. M. Merino. (R. 1863) 187 



internal structure of the — J. G. Barnard 310 



laws of atmospheric circulation over the — J. H. Coffin 268 



revolutions of crust of the— G. Pilar. (R. 1876) 299 



secular variation of elements of orbit of — J. N. Stockwell 232 



Earthquake — 



at New Madrid, Missouri— T. Dudley. (R. 1858) 109 



directions — J.Henry. (R. 1855) 77 



in Eastern Mexico, January, 1866 — C. Sartorius. (R. 1866) 214 



in Peru, August 13, 1868— J. V. Campbell. (R. 1870) 244 



phenomena, on observations of — R. Mallet. (R. 1859) 110 



Earthquakes — 



articles on, received by Smithsonian Institution and deposited in Library 



of Congress. (R. 1871) 249 



circular relative to— J. Henry 148 



