U. S. & CAN.] THE NATURALISTS' DIRECTORY. 3 
40 Ainslie, Charles N., A. M., Rochester, Minn. Mic. Cor- 
respondence invited. C. Ex.* 
41 Aitchison, Clyde B., B. Sc. 1335 6th St., Hastings, Adams 
Co., Neb. Chem., Min., Photog., Gen. Biol* 
_ 42 Aiton, George B., A. M., Prin. East Side High School, 1601 
University Ave., Minneapolis, Minn. Bot., Phcen. Plants. 
C. Ex. for good specimens only.* 
43 Akhurst, John, 78 Ashland Place, Brooklyn, N. Y. Ent: 
Lepid., Coleopt., Tax. C. Ex. Dealer in Entomo- 
logical Supplies.* 
44 Alberger, A. H., 1181 Delaware Ave., Buffalo, N. Y. Orn. 
.. 45 Alberger, L. R., 9 East 22d St., N. Y. Bot., Photog* 
46 Albers, A., 223 Linu St., Cincinnati, Ohio. Designer and 
engraver of Natural Hist, objects, views, maps, etc. 
Geol., Palceo. C. Ex.* 
47 Albrecht, Dr. Jos., 219 Elysianfield St., New Orleans, La. 
Bot: Ferns, Hort., Geol, Min., Chem., MetalL, Phys., 
Elect., Photog., Anat., Ent* 
48 Albrook, Rev. Prof. J. B., A. M., Ph. D., D. D., Mt. Vernon, 
Iowa. Invert. Palceo., Geol., Min., C. Ex. fossils of 
Maquoketa and Rockford Shales.* 
49 Aldeu, John, Lawrence, Mass. Chem.* 
50 Alden, Levi, Madison, Wis. Ast. ? 
51 Alder, Prof. Cyrus, Johns Hopkins Univ., Baltimore, Md.? 
52 Alderson, Ed. R., 525 7ih St., La Salle, 111. Gen. Min., 
Bot., Pressed Flowers. C. Ex. 
_ 53 Alderson, R. D., Witch Creek, San Diego Co., Calif. Bot. 
C. Ex.* 
54 Alderson, Victor C., F. G. S. A., [6721 Honore St., Engle- 
wood, Chicago, 111. Invert. Paloso., Geol., Min., Crystall., 
Lithol. C. Ex.* 
55 Aldrich, John D., 189 College Ave., Indianapolis, Ind. 
Con., Old Coins and Postage Stamps. C. Ex. Desires 
correspondents in So. States and Foreign Countries. 
56 Aldrich, J. M., Prof. Zool., Univ. of Idaho, Moscow, Ida- 
ho. Ent: Dipt. C* 
57 Aldrich, T. H., M. E., 92 Southern Ave., Cincinnati, Ohio. 
Moll. Specialty, Tertiary fossils of N. A. Exchanges 
desired.* 
58 Aldrich, Walter, Antiquarian, Providence, R. I. Bibliog 
C. Ex. Will sell and purchase.* 
59 Aldrich, Walter H., M. E , The United Smelting and Kef. 
Co., East Helena, Mont Geol., Min., Chem* 
60 Alexander, A., H. M. Customs, Hamilton, Ont., Canada 
Bot. C. Ex.? 
61 Allam, G. Edward, Bethlehem, Penn. Bot: Phcen. Plants 
Algce, Hort., Phys. C. Ex.* 
62 Allan, Alex., 301 Pine St., Central Falls, R. I. Chem., Mic., 
Min. 
63 Allard, Memminsrer, M. D., Prof. Chem. and Hygiene in 
State Medical Coll. of S. C., Address, 44 Hasell St. 
1 Charleston, S. C. Org. Chem.* 
