176 THE NATURALISTS' DIRECTORY. [TJ. S. & CAN. 
4267 Pember, F. T., Granville, Washington Co., N. Y. Ool. C. 
Ex. A large quantity of duplicate skins and eggs in sets 
for exchange or for sale.* 
4268 Pemberton, Henry, 1947 Locust St., Philadelphia, Pa. Chem., 
Geol., Min., Cry stall., Arch. 
4269 Peraberton, Henry, Jr., 1947 Locust St., Philadelphia, Pa. 
Chem. 
4270 Pendleton, J. H., Ph.D., Prof. Chem., Va. Military Inst., 
Lexington, Va. 
4271 Penfield, Sarnl. L., Sheffield Scientific School, New Haven, 
Ct. Min., Chem.* 
4272 Penhallow, Prof. D. P., McGill Univ., Montreal, Can.* 
4273 Pennock, Aldrich J., Lansdowne, Pa, Bot., Mic. C. Ent.* 
4274 Pennock, C. J., Kennett Square, Chester Co., Pa. Orn., 
Ool. C. Ex.* 
4275 Pennock, Edw., 4529 Knox St., Germantown, Philadelphia, 
Pa. Mic., Bot.* 
4276 Pennock, T., M.D., Kidley Park, Delaware Co., Pa. Orn.. 
Ool* 
4277 Pennypacker, Charles H., West Chester, Penn. Min., Con., 
Arch., Mic., Bot. Importer and Dealer in Fine Cabinet 
Minerals and Rare Land and Marine Shells. Examples 
sent upon approval.* 
4278 Penrose, R. A. F., Jr., Ph.D., Geologist, 1331 Spruce St., 
Philadelphia, Pa. Geol. Dept., Univ. of Chicago, Chicago, 
111., Jan. to Mch. Geol.* 
4279 Perkins, George E., 31 Market Sq., Providence, R. I. Geol., 
Min., Cry stall., Chem., MetalL, Physics, Mic. 
4280 Perkins, George H., Prof. Nat. Hist., Univ. of Vt., Burling- 
ton, Vt. Palceo., Arch., Zool. C. Ex.* 
4281 Perkins, Henry F., Teacher, Fredericton, N. B., Can. Bot., 
PhGen. and Crypt. Plants, Ferns. C. Ex. 
4282 Perkins, Maurice, M.D., Union Coll. and Albany Med. Coll., 
Schenectady, N. Y. Chem.? 
4283 Perot, Chas. P., 252 No. Broad St., Phila., Pa. Gen. Sci.* 
4284 Perrine, Deloss L., Eden Valley, Erie Co., N. Y. Bot., 
Elect., Photog., Ool. C. Ex.* 
4285 Perrine, F. A. C., A.M., D.Sc., Prof. Elect. Eng., Leland 
Stanford, Jr. Univ., Palo Alto, Calif. Met., Phys., Meet.* 
4286 Perry, Rev. Edw. A., Fort Plain, N. Y. Min., Mic. C. Ex.* 
4287 Perry, Edw. F., Putman, Ct., Ent:Lepid. C. Ex.? 
4288 Perry, Joseph H., Teacher of Chem. and Geol., English 
High School, 176 Highland St., Worcester, Mass. Geol. t 
Chem* 
4289 Perry, Troup D., Savannah, Ga. Ool C. Ex.* 
4290 Peter, Alfred M., Lexington, Ky. Analyt. and Agric. Chem., 
Phcen. Bot.* 
4291 Peter, R., M.D., Chemist to Ky. Geol. Surv., Lexington, Ky. 
Chem. 
4292 Peters, Dr. Edw. D., Jr., M.E., Percival Ave., Dorchester, 
Mass., care of Dr. Benjamin Cushing. Coleopt. C. Ex.* 
