2 THE NATURALISTS' DIRECTORY. [IT. S. & CAN. 
1495 Dewey, Lyster H., Asst. Bot., U.S. Dept. Agric., Washing- 
toD, D.C. Sot: Phcen. Plants, Graminece.* 
1496 Dexter, S. Frank, Pawtucket, R.I. Orn. C.* 
1497 Dickel, George, Louisville, Ky. Breeder of Pheasants. 
Lepid. C* 
1498 Dickinson, Dr. E. E., Fairport, Monroe Co., N.Y. ; in winter, 
Nassau, N.P., Bahamas. Sot., Min., Elect., Anat , Osteol. 
C. Ex. 
1499 Dickinson, Prof. John, University P.O., Los Angeles, Calif. 
Min , Phys., Gen. Biol. C.? 
1500 Dickinson, John W., Jr., Holyoke, Mass. Arch., Ool. C. 
Ex. for Northern Species. 
1501 Dickinson, Wm., A.M., M.D., 1322 Olive St., St. Louis, Mo. 
Bibliog., EthnoL, Philol, Numis* 
1502 Dickinson, W. N., Jr., Elect. Eng., 357 St. James Ave., 
Springfield, Mass. Elect* 
1503 Dickinson, Mrs. W. P., 608^ Nicollet Ave., Minneapolis, Min 
Sot., Palceo. C.* 
1504 Dickman, R. M.. 7L Atwater Bldg., Cleveland, Ohio. Strat. 
Geol , Min., Cry stall., Lithol, Inorg. Chem., Metall Ex.* 
1505 Dickson, A. W., Second Vice-President Lackawanna Inst. 
of History and Science, Scranton, Pa.* 
1506 Dieckman, F. W., cor. Davis and Sacramento Sts., San Fran- 
cisco, Cal. Lepid. Exchange and sale. No orders filled 
unless accompanied by money.* 
1507 Dienelt, Fr., Loda, 111. Interested in Insects and Mic. Valu- 
able obs. in insect Anat.* 
1508 Dietz, Ottomar J. L., 112 E. 90th St., New York, N.Y. Coif- 
opt. C. Ex.* 
1509 Dietz, William G., M.D., Hazleton, Luzerne Co., Pa. Cole- 
opt and Lepid. of U.S. C. Ex. Desires to exchange N. 
A. Coleopt. for Rhynchophora (Curculionidae) from all 
parts of the world. Correspondents (in English, German, 
or French) from home and abroad desired. Will also buy 
material in lots, and correctly named species still wanting 
in my collection, and collect in other orders in ex. for 
material in the above. Desires to ex. publications.* 
1510 Diller, Joseph S., S.B., U.S. Geol. Survey, Washington, D.C. 
Geol., Lithol* 
1511 Dimmick, Frank E., Deer Park, LafSalle Co., 111. , Min., 
Bot. C. Ex.? 
1512 Dimmock, George, Ph.D., Canobie Lake, N.H. Bibliog., 
Ent., Zool. C.* 
1513 Dinsmore, Thomas H., Jr., Prof. Phys. and Chem., State 
Normal School, Emporia, Kans. Chem., Phys., Elect. 
1514 D'Invilliers, E. V., Geol. and Min. Eng., 711 Walnut St., 
Philadelphia, Pa. Strat. Geol., Min., Lith., Metall* 
1515 Dionne, C. E., Cur. du Mus., Zool. de 1'Univ., Laval, Que- 
bec, Can. Zool. C. Ex.* 
1516 Dippie, G. Fred., 324 George St., Toronto, Ont., Can. O., 
Ool., Tax. C. Ex.* 
