222 THE NATURALISTS' DIRECTORY. [U.S. & 
5392 Summers, William H., 3450 Cottage Grove Ave., Chicago- 
111. Mic., Diatoms. C. Ex.* 
5393 Surface, H. A., M. Sc., Ohio State Univ., Columbus, Ohio, 
Palceo., Con,, Min. C. Ex. Palaeozoic Fossils, N. A. L. 
and F. W. Shells and Minerals to ex. for any Fossils, 
Shells or Minerals.* 
5394 Suttie, G M M.D., Ph.C., Prof, of Bot., Detroit Coll. of Med., 
Dept. of Pharm., 369 Meldrum Ave., Detroit, Mich. 
Phcen. Sot. C. Ex.* 
5395 Sutton, Harry J., 1368 So. 46th St., Philadelphia, Pa. 
Algce, Desmids, Mic., Protozoa (Radiolaria). C. Ex.* 
5396 Sutton, William, 2514 Sacramento St., San Francisco, Calif. 
Con. Ex. Also desires correspondents in Southern States 
and foreign countries.* 
5397 Swain, Miss Emma, 1354 Eighth Ave., East Oakland, Calif. 
Min., Moll. C. Ex.* 
5398 Swaine, Seorim, Rochester, N". H. Desmids, Diatoms, Mic , 
Photog. C.* 
5399 Swallow, G. C., M.D., LL.D., Helena, Montana. GeoL, Zool., 
Bot* 
5400 Swan, Charles W., M.D., 79 Worcester St., Boston, Mass. 
Bot. C. Ex.* 
5401 Swan, Mrs. Frank, Stamford, Ct. Ferns.* 
5402 Swart, Walter G., Delta, Colo. Min. C.? 
5403 Sweeny, R. O., Jr., M.D., P. O. Box 684, Lester Park, 
Duluth, Minn. Ichth., Min., Arch* 
5404 Sweet, Henry N., 4 Spruce St., Boston, Mass. MetalL, 
Elect., Mic., Photog., Ast'., Arch., Ethnol* 
5405 Sweetser, Robert C., Greendale, Worcester, Mass. Inorg. 
Chem* 
5406 Swentzel, H. J., Jr., Collector of Fossils, Minerals and In- 
dian relics, 49 West Frederick St., Lancaster City, Pa., 
GeoL, Min., Arch. C. Ex.* 
5407 Swezey, G. D., A.M., Prof. Doane Coll., Crete, Neb. Bot., 
Zool., GeoL C. Ex.* 
5408 Swift, Edward, Tax., 725 West 1st St., Elmira, N. Y. Zool., 
Emb., Orn., OoL, Tax., Ichth., etc. Correspondence with 
collectors of Birds solicited. C. Ex.* 
5409 Swift, Lewis, F.R.A.S., Ph.D., Dir. Warner Obs., Rochester, 
N. Y. Ast.* 
5410 Swift, Robert, S. B., M.D., Box 135, Harriman, Tenn. GeoL, 
Comp. Anat. C. 
5411 Swingle, W. T., Special Agent Div. of Veg. Pathol., U. S. 
Dept. of Agric., Subtropical Laboratory, Eustis, Fla. Veg. 
Physiol. and Pathol* 
5412 Swingley, Jos. A., Aberdeen, Harford Co., Md. GeoL, 
Min., Arch., Tax., Crustacea. C. Ex.* 
5413 Sylvester, Wm. H., M.D., Natick, Mass. Mic., Photog. C. 
Ex. slides only.* 
5414 Taber, E. B., Journalist, ''Times," New York, N. Y. 
Lepid. 
