226 THE NATURALISTS' DIRECTORY. [U. S. & CAN. 
5488 Thompson, Miss Emma J., East Haddam, Conn. Bot. C. 
Ex.* 
5489 Thompson, Edw. P., Prof. Math, and Ask, Miami Univ. r 
Oxford, Ohio. Math., Chem., Ast* 
5490 Thompson, Frederick F., Care of First Nat. Bank, New 
York, N. Y. Diatoms, Mic., Photog., Bibliog. 
5491 Thompson, Gilbert, Geographer, U. fe. Gooi. Survey, Wash- 
ington, D. C.* 
5492 Thompson, G. W., Chemist, National Lead Co., 53 Park 
Place, Brooklyn, N. Y. Phcen. and Crypt. Bot., Chem. 
C. Ex.* 
5493 Thompson, Joseph, Kosebank P. O., Clifton, Staten Island, 
N. Y. Emb., Vert. Anat., Anth., Eth., Histol* 
5494 Thompson, J. C., Dir. and Cur. Nat. Sci. Assoc., Staten 
Island, Rosebank, P. O. Box 73, Staten Island, N. Y r 
Comp. Anat., Emb. of Vert.* 
5495 Thomson, John H., Ph.D., C.M.Z.S., Box 347, New Bedford, 
Mass. Con., Spec. Helicidce. C. Ex. Wishes Foreign 
HelicidaB for which American and Foreign L., F. W. and 
Marine species will be given in ex. South American spe- 
cies especially desired. Correspondence desired. Collec- 
tions named and arranged.* 
5496 Thompson, Joseph O., Ph.D., Hayerford College, P. O., Pa. 
5497 Thompson, Miss Margaret R., Spearfish, S. Dakota. Bot.? 
5498 Thompson, Richard J., M.D., 34 Rock St., Fall River, Mass. 
Phys. Geog., Min., Mic. C.? 
5499 Thompson, Russell J., National Mus., Washington, D. C. 
Gen. Biol., Mammals. C.* 
5500 Thompson, Wm. A., B.S., M.E., Box 127, Riverside, Cook 
Co., 111. Min., Metall., Phys. C. Ex.* 
5501 Thomson, Harvey, A.M., Prof. Nat. Sci., Paxton, 111. Bot: 
Phcen. Plants. C. Ex.* 
5502 Thomson, W. B.. New Britain, Ct. Min. C. Ex.* 
5503 Thorburn, John, M.A., LL.D., Geol. Surv., Ottawa, Ont. r 
Can. Arch., Ethnog., PhiloL* 
5504 Thornber, John J., Iroquois, So. Dakota. Bot; Phcen. and 
Crypt. Plants, Ferns. C. Ex.* 
5505 Thornburg, Prof. C. L., Nashville, Tenn. Ast. 
5506 Thorubury, F. J., M.D., Supervising Mic., Bureau of Ani- 
mal Industry, Branch No. 42, U. S. Dept. Agric., etc., 610 
Main St., Buffalo, N. Y. Fungi, Veg. Palceo., Org. Chem., 
Bacteriol., Ptomainol., Physics, Mic., MorphoL, Smb., 
HistoL, Protozoa. C. Ex.* 
5507 Thorpe, H. H., M.D., Liberty Hill, Texas. Geol., Min. r 
Elect., Arch* 
5508 Thresher, Alfred A., Dayton, Ohio. Palceo., Geol., Min. r 
Elect., Crystall., Photog., Arch. C. Ex.* 
5509 Thropp, J. E., 2100 Walnut St., Philadelphia, Pa. Min., In- 
org. Chem., Met. 
