nnni/c w, lliam j. 



DUUK^ offerethefolIowi :;: 



WILLIAM J. GERHARD, 



2209 CALLOWHILL STRERT, PHILADELPHIA, PA.. 



r at affixed net prices. Extended catalogues 

 of books and pamphlets in all branches of natural history post-free on request : 



1. American Journal of Conchology. 7 vols., partly bound $25.00 



2. American Journal of Science. Second Series, volumes 1-10. Half roan 



3. American Mineralogical Journal (Bruce). 1 vol., 1814. New half morocco 



4. American Monthly Microscopical Journal, vols. 1-20 (1888-1899), of which 



5. American Naturalist, vols. 1-6 (1868-72) 9.00 



6. Annals N. Y. Academy of Science, vols. 4-14 (1887-1898). Cloth 22.50 



7. Annuaire du Musee Zoologique de 1' Academie des Sciences, St. Peters- 



bourg, vols. 1-7 (1896-1902), lacking one number of vol. 1 10.00 



8. Bulletin American Museum of Natural History, vols. 1-11 (1887-1901) ... 27.50 



9. DeKay. Zoology of New York— Birds. 4to. Cloth. 141 colored plates 10.00 

 10. Gaudry, A. Animaux fossiles et geologie de 1'Attique. 2 vols., folio, 



1862-67. Half calf, 75 plates and map 35.00 



11. Harlan, R. Medical and physical researches, etc. 1835. Cloth 



12. Journal and Proceedings Royal Society of New South Wales, vols. 11 



(1877) to 23 (1890), except vol. 14. Partly bound in cloth 



[ing, C. United States Geological Exploration of 40th Parallel. Com- 

 plete set, 7 vols. , quarto, cloth, and two folio atlases 



14. Microscope (The), vols. 4-11. 8 vols, in four. Half roan 



Pritchard, A. History of 

 aceae. Fourth (last) < 

 17. Proceedings Lit. and Philos. Society of Liverpool, vols. 1-34 (except 



vols. 5, 10, 11, 12, 16, 17, 20, 21), partly bound 



Reports of Explorations and Surveys ... for a railroad from Miss. 



River to Pacific Ocean. 13 vols. 4to. Bound 



Smithsonian Miscellaneous Collections, vols. 1-6 (1861-67). Scarce 13.50 



20. Sowerly and Lear. Tortoises, terrapins and turtles drawn from life. 



Small folio, 1872. Half morocco, 60 finely colored plates 11.00 



21. Transactions American Entomological Society, vols. 1-6. Bound. Scarce 35.00 



22. Transactions Geological Society of Pennsylvania. 1 vol. (1835.) All 



issued. New half morocco. Rare 15.00 



23. Winter, G. Die Pike Deutschlands, etc., vols. 1 and 2 (1884-37). 



Half morocco 7.50 



