U. S. & CAN. I THE NATURALISTS' DIRECTORY. 35 
823 Bullock, David J., School of Biol., Univ. Pennsylvania. 
Anat., Mammals, Coleopt. C. 
824 Bumpus, H. C., Prof. Comp. Anat., Brown Univ., Provi- 
dence, R.I. Zool* 
825 Bunn, G. B., 2412 East Dauphin St., Philadelphia, Pa. Ent: 
Coleopt., Lepid., Tax. C. Ex. 
826 Bunn, Jacob G., 2412 E. Dauphin St., Philadelphia, Pa. 
Coleopt., Lepid. C. Ex. First-class specimens wanted 
from all parts of the world and nothing but the same sent- 
in ex. Collections correctly named for first-class speci- 
mens. 
827 Burchfield, S. E., M.D., Latrobe, Pa. Bot., Geol. C. 
828 Burckhalter, Charles, Astronomer in Charge Chabot Ob- 
serv., Oakland, Calif.* 
829 Burdick, A. Hall, Supt. of Schools, Stapleton, Staten Isl. 
N.Y. Phcen. Bot., Ferns. C.* 
830 Burdick, Win. L., A.M., Ph.D., East Greenwich, R.I. Bot., 
GeoL, Inorg. Chem., Ast. C. Ex. 
831 Burgdorff, F. F., P.A. Engineer U.S.N., Prof. Mech. Eng., 
Univ. of Tenn., Knoxville, Tenn. 
832 Burgess, Edward Sandford, A.M., Washington High School, 
Washington, D.C. Bot. : Algce, Aster and Solidaqo. C. 
Ex.* 
833 Burgess, Robert, Ames, Story Co., la. Bot.? 
834 Burgess, Thomas J. W., M.D., F.R.S.C., Med. Supt. Pro- 
testant Hospital for Insane, Montreal, Quebec, Can. Bot., 
Phcen. and Crypt. Plants, Ferns. C. Ex.* 
835 Burk, Charles W., M.D., Instructor in Zool., Univ. Penn. 
Philadelphia, Pa. Zool., Osteol., Myol. 
836 Burk, Dr. Wm. H., care "Public Ledger," Philadelphia 
Pa. Bot* 
837 Burke, Jas. H., Ukiah, Mendocino Co., Calif. Diatoms, 
Mic., Ent., Agric., Hort. 
838 Burland, Jeffrey H., B.A. Sc., F.C.S., Secretary British 
Am. Bank Note Co., Ottawa, Ont., Can. Min., Pract. 
Chem., Invert. C. Ex.* 
839 Burman, Rev. Wm. A., B.D., Sec. Manitoba Branch Bot: 
Club of Canada, Winnipeg, Manitoba. Bot., Phcen. and 
Crypt. Plants, Ferns, Hort., Photocj., Eth.. Philol, Ent. C. 
Ex.* 
840 Burnett, H. S., Kendall, Orleans Co., N.Y. Phcen. Bot., 
Ferns, Lepid., Tax. C. Ex.* 
841 Burnham, J. P., Oak Park, 111. Prof, of Mechanical Refrig- 
eration, Mic., Bacteria. 
842 Burnham, Stewart H., Vaughns, N.Y. Phcen. Bot., Ferns, 
Hepaticces, Mosses. C. Ex.* 
843 Burnham, Miss Sarah M., East Cambridge, Mass. GeoL, 
Min. C.* 
844 Burriham, S. W., Gov't Bldg., Chicago. 111. Photog., Ast* 
845 Burns, Frank L., Berwyn, Chester Co., Pa. Orn., Ool., 
Tax.* 
