BREWSTER, WILLIAM, Cambridge, Massachusetts. BROWN, MISS E. V. (Elizabeth Virginia), 1312 S Street. BURTON, PROF. A. E. (Alfred Edner), _a_., Massachusetts Institute of Technology, Boston, Mass. CARPENTER, Z. T. (Zachary Taylor), _a_., 1003 F Street. 1009 Thirteenth Street. CHAPMAN, R. H. (Robert Hollister), _a_., Geological Survey. 1207 L Street. CHATARD, DR. THOS. M. (Thomas Marean), _a_., Geological Survey. 516 Park Avenue, Baltimore, Md. CHRISTIE, PETER H. (Peter Harrison), Geological Survey. CLARK, A. HOWARD (Alonzo Howard), National Museum. 1527 S Street. CLARK, E. B. (Elias Buckner), _a_., Geological Survey. Laurel, Md. COLVIN, VERPLANCK, _a_., Albany, New York. COURT, E. E. (Emil Edward), Hydrographic Office. 431 Q Street. CUMMIN, R. D. (Robert Dodge), _a_., Geological Survey. 1710 I Street. CURTIS, W. E. (William Ellery), _a_., 513 Fourteenth Street. 1424 Q Street. DALL, MRS. CAROLINE H. (Caroline Healey), _a_., 1603 O Street. DARWIN, CHAS. C. (Charles Carlyle), _a_., Geological Survey. 1907 Harewood Avenue, Le Droit Park. DAVIDSON, PROF. GEORGE, _a_., Coast and Geodetic Survey. San Francisco, Cal. DAVIS, A. P. (Arthur Powell), _a_., Geological Survey. 314 M Street. DAVIS, MRS. A. P. (Elizabeth Brown Davis), 314 M Street. DAVIS, PROF. WM. M. (William Morris), 308 Walnut Street, Philadelphia, Pa. DAY, DR. DAVID T. (David Talbot), Geological Survey. 621 Thirteenth Street. DENNIS, W. H. (William Hooper), _a_., Coast and Geodetic Survey. 12 Iowa Circle. DILLER, J. S. (Joseph Silas), _a_., Geological Survey. 1804 Sixteenth Street. DOUGLAS, E. M. (Edward Morehouse), _a_., Geological Survey. Takoma Park, D. C. DOW, JOHN M., Pacific Mail S. S. Co., Panama. DUKE, BASIL, Geological Survey. 457 C Street. DUNNINGTON, A. F. (Abner F.), _a_., Geological Survey. 504 A Street SE. DURAND, JOHN, 16 Rue Littre, Paris. DUTTON, A. H. (Arthur Henry), _a_., Hydrographic Office. 1305 H Street. DUTTON, CAPT. C. E. (Clarence Edward), U. S. A., _a_., Geological Survey. 2024 R Street. DYER, LIEUT. G. L. (George Leland), U. S. N., Hydrographic Office. 1415 Twentieth Street. *DYER, G. W. (George Washington), _a_., 1003 F Street. 1325 Vermont Avenue. EDSON, J. R. (Joseph Romanzo), _a_., 1003 F Street. 1335 Corcoran Street. ELLIOTT, LIEUT. W. P. (William Power), U. S. N., _a_., Navy Department. 1801 Q Street. FAIRFIELD, G. A. (George Albert), _a_., Coast and Geodetic Survey. 1418 Fifteenth Street. FAIRFIELD, WALTER B. (Walter Brown), _a_., Coast and Geodetic Survey. FERNOW, B. E. (Bernhard Eduard), _a_., Department of Agriculture. 1704 Nineteenth Street. FINLEY, LIEUT. J. P. (John Park), U. S. A., _a_., Army Signal Office. 1003 Twenty-fourth Street. FISCHER, E. G. (Ernst George), _a_., Coast and Geodetic Survey. 436 New York Avenue. FITCH, C. H. (Charles Hall), _a_., Geological Survey. 3025 N Street.