U. S. & CAN.] THE NATURALISTS' DIRECTORY. 83 
2017 Gaul, Dr. R. C., 119 So. 4th St., Reading, Pa. Min. C.? 
2018 Gault, B. T., Glen Ellyn, Dupage Co., 111. Orn., Ool, Tax. 
2019 Gay, Dr. Fred A., 333 Westminster St., Moulton Building, 
Providence, R.I. Min. C.* 
2020 Gaylord, Mrs. E. P., 34 High St., Detroit, Mich. Cyprae- 
idce ? 
2021 Geddes, Capt. Gamble, 162 Bernard Ave., Toronto, Can. 
General Ent. Species from Ont. and Quebec in ex. for 
those of other N. A. localities. Diurnals from the Rocky 
Mts. a specialty. 
2022 Gehret, Georce, 647 Mulberry St., Reading, Berks Co., Pa. 
Desires minerals from all parts of the world. Can offer 
minerals from Penn. and Africa in cabinet and museum 
specimens. Correspondence desired. Would like to ex. 
Min. for a small Printing Press. Min., Ool., Tax., Ent., 
Lepid. C. Ex.* 
2023 Gehring, J. G., M.D., Bethel, Me. Ent; Coleopt. 
2024 Gehrmann. Adolph, M.D., 235 State St., Chicago, 111. 
Bacterial. , Pathol. C. Ex. 
2025 Geiger, H. R., Springfield, Ohio. Geol., Chem* 
2026 Geisler, Joseph Frank, Ph.C., F.C.S., Analyt. and Consult- 
ing Chemist, Mercantile Exchange Bld'g, cor. Hudson 
and Harrison Sts., New York, N.Y. P/mn. Bot., Lithol., 
Chem* 
2027 Gen th, Prof. Fred A., Jr., Philadelphia, Pa. Chem., Min. 
C. Ex.* 
2028 Gentry, Thomas G., U.S. Grant Boys' Grammar School, 
N.E. corner 17th and Pine Sts.; Residence 2020 N. 18th 
St., Philadelphia, Pa. Orn., Ool., Mosses, Fungi. C. 
Ex.* 
2029 George, F. W., Williamstown, Iowa. Inorg. Chem., Zool., 
Orn.* 
2030 George, James N., 37 Pearl St., Boston, Mass. Elect* 
2031 Georgeson, Chas. C., M. Sc., Prof. Agric., Kansas State 
Agric. Coll., Manhattan, Kansas.* 
2032 Georgii, Max, L.L.M., C.E., 606 F. St., N.W., Washington, 
D.C. Chem., MetalL, Physics, Elect., Photog., Anth.,Eth. r 
Ethnog., Philol* 
2033 Gerard, Chas. B., Anderson, Ind. Arch. 
2034 Gerard, W. R., 62 Clinton Place, New York, N.Y. Bot., 
Philol., Plant Names.* 
2035 Gerend, Jacob N., 704 8th St., Sheboygan, Wis. Orn., Ool. 
C. Ex.* 
2036 Gerend, John, Sheboygan, Wis. Orn., Ool., Lepid., Herpe- 
tol. C.* 
2087 Gerhard, Wm. J., 212 S. 12th St., Reading, Pa. Orn., Ool. 
C. Ex. 
2038 Gernerd, J. M. M., Muncy, LycomingCo., Pa. Arch., Con., 
Palceo. C.* 
