0. S. & CAN.] THE NATURALISTS' DIRECTORY. 109 
2671 Holden, Isaac, A.M., Bridgeport, Ct. Pteridophyta, Musci, 
Alf/ce. C. Ex.* 
2672 Holder, Chas. F., LL.D., Prof. Biol., Throop Univ., San 
Francisco, Calif., and Pasedena, Calif. Zool., Gen. Biol, 
Arch* 
2673 Holder, Mary H., Berlin, Mass. Sot. C.* 
2674 Holland, Frank, Manchester, N.H. Mic. C* 
2675 Holland, Rev. F. R., Hope, Ind. Bot., Con. C.* 
2676 Holland, Rev. W. J., D.D., Ph.D., Late Pres. Acad. Sci. and 
Art of Pittsburgh, Chancellor Western Univ. of Pa., Mem- 
ber Ent. Soc. of France, London, etc., Pittsburgh, Pa. 
Bot., Ent., Lepid., Coleopt. Large Collection, including 
entire coll. of Mead, W. H. Edwards, Knyvett and Pryer, 
(Japanese Pyrals, etc.) Desires to buy insects from all 
parts of the "world, esp. Africa. Also rare books on Lep- 
id.* 
2677 Hollick, Arthur, Ph.B., New Brighton, Staten Island, N. Y. 
Phcen. and Crypt, Bot., Palceo. C.* 
2678 Hollingworth, Sam'l, 394 Yonge St., Toronto, Ont., Canada. 
Bot* 
2679 Hollis, Frederick S., Newton Highlands, Mass. Min.,Lith., 
Chem * 
2680 Holm, Theo., Ass't Botanist. U.S. Dept. of Agric., Wash- 
ington, D.C. Bot: Phcen. Plants. C. Ex. Cyperaceas.* 
2681 Holman, David S., Acad. Nat. Sciences, Philadelphia, Pa. 
Mic* 
2682 Holman, Silas W-, S.B., Assoc. Prof, of Physics, Mass. 
Inst. Tech., Boston, Mass. Phys., Elect, Heat* 
2683 Holmes, Bayard, B.S., M.D., E. 40th St., Chicago, 111. Mic., 
Bacteriol., Pathol., Biol. 
2684 Holmes, E. S., D.D.S., Grand Rapids, Mich. Zool* 
2685 Holmes, F. S., E.E.,455A MaconSt., Brooklyn, N.Y. Elect.* 
2686 Holmes, Joseph A., State Geologist of N. Carolina. Chapel 
Hill, N.C. Geol. C.* 
2687 Holmes, Miss Mary E., Ph.D., 201 S. 1st St., Rockford, Win- 
nebago Co., 111. Bot., Orn., Geol. C. Ex.* 
2688 Holmes, W. H., U.S. Bureau of Eth., Washington, D.C. 
Geol., Arch* 
2689 Holsen, A. F., Salt Lake City, Utah, Min., Metall. 
2690 Holstein, Francis, De Roche, Hot Spring Co., Ark. Bot., 
Min., Arch. C. Ex. Arkansas Minerals and Petrifac- 
tions. Will ex. Mound Builders and Ancient Indian 
Relics for Books and Pamphlets on Min., Geol., Metall. 
and Mining. 
2691 Holstein, Geo. Wolf, Belvidere, N.J. Invert. Palceo., Bot., 
Anth., Arch. C. Ex.* 
2692 Holstein, L. M., Belvidere, N.J. Min., Tax* 
2693 Holt, James P., M.D., Claremont, N.H. Mic., Bot., Fungi, 
Diatoms, Chem., Anat., Hist. C. Ex. 
2694 Holt, Dr. John F., Care of Boys' High School, Phila., Pa. 
Gen. Zool.f 
