U. S. & CAN.] THE NATURALISTS' DIRECTORY. 169 
ing of new hybrid Amaryllis, Crinums, Chinese Narcissus and 
many other Amaryllidece a Specialty.* 
4103 Obst, C. L., Pittsfield, Pike Co., 111. Arch., Prehist. Re- 
mains, Min. C. Ex. flint implements of the different 
States and Europe for those of Illinois (first class only). 
Will sell sets of all the different forms.* 
4104 Ochsner, A. J., B.S., F.R.M.S.. M.D., 710 Sedgwick St., Chi- 
cago, 111. Mic., Emb., Histol. C.* 
4105 O'Connor, Haldeman, Harrisburg, Pa. Orn. 
4106 Odendall, Godfrey Francis, Ph.D., P. O. Box 520, Stapleton, 
Richmond Co., N. Y. Gen. Chem., Mic., Ast,, Hist., Math., 
Greek.* 
4107 Oeh, J. Geo., Riddle Road, Clifton Heights, Cincinnati, Ohio. 
Pa/ceo., Geol. C.* 
4108 Ogden, I. G., Prof. Biol., Pittsburg Female Coll., Pittsburg, 
Pa.? 
4109 Ogden, John L., 72nd St., and Greenway Ave., Philadelphia, 
Pa. Naticidce.? 
4110 O'Grady, Marcella I., Prof. Biol., Vassar Coll., Poughkeep- 
sie, N. Y.* 
4111 O'Harra, Cleophas C., Prof. Nat. and Phys. Sci., Carthage 
Coll., Carthage, 111. Bot., Physics, Zool., Gen. Biol* 
4112 Ohlendorf, Dr. W. C., Ph. G., 645 Blue Island Ave., Chicago, 
111. Phcen. and Crypt Bot., Ferns, Mosses. C. Ex.* 
4113 Ohlmacher, Albert P., M.D., Prof. Emb. and Comp. Anat. T 
Coll. Physicians and Surgeons, 827 Milwaukee Ave., Chica- 
go, 111. Mic., Zool., Gen. Biol., Morph., Emb., Anat., Vert., 
Mammals, Osteol, Myol., Histol., Gen. Ent* 
4114 Ohmann-Dumesnil, A. H., A.M.. M.D., Editor St. Louis 
Medical and Surgical Journal, Med. Review, Quarterly 
Atlas of Dermatology, North Broadway, St. Louis, Mo. 
Mic., Specialty Human Skin, Normal and Pathological; Gen- 
eral Histol. C. Ex.* 
4115 Olcott, Eben E., E.M., 18 Broadway, New York, N. Y. Geol., 
Min., Lithol., Metall. C. Ex.* 
4116 Oldright, Charles, B.Sc., Assoc. M.A.O.U., School of Biol., 
Univ. of Texas, Austin, Texas. Philol, Orn., Gen. Biol* 
4117 Oldroyd, Thomas S., 142 N. Los Angeles St., Los Angeles, 
Calif. Mollusks. C. Ex.* 
4118 Oliver, Chas. A.; A.M., M.D., 1507 Locust St., Philadelphia, 
Pa. Special Sense Morphol. Desire Opthalmological Lit- 
erature.* 
4119 Oliver, Clifford, Gilbert Station, Story Co., Iowa. Ool.. Tax. 
C. Ex.* 
4120 Oliver, J. C., 5 S. Fort St., Los Angeles, Calif. Phcen. Bot., 
Mic., Ool. C. Ex.? 
4121 Olney, Lizzie E., 73 Meeting St., Providence, R. I. Bot: 
Phcen. and Crypt. Plants, Ferns. C. Ex.* 
4122 Onderdonk, Cornelius, Calera, Ala. Bot., Diatoms, Hort., 
Mic., Infusoria.* 
4123 O'Neill, Edmund, Univ. of Calif., Berkeley, Calif. Chem.* 
