THE BOTANISTS OF PHILADELPHIA. 397 



12. "The Origin of Paper and Cloth.''— Traffic, IV : 18, March, 1895. 



13. " When is Rhus toxicodendron Most Active ? " — Garden and Forest, 

 VIII : 239. 



14. "Review of Dennert's Vergleichende Pflanzenmorphologie. " — 

 Science, N. S., II : 311, September 6, 1895. 



15. "El Maiz Estudio Botanicoy Economico." Translation of (6) by 

 Dr. Nicolas Leon. — Guadalupe-Hidalgo, Mexico, 1894. 



16. "Museum and Garden." — Daily Evening Telegraph, Philadelphia, 

 XLIV : 5, October 26, 1895. 



17. " The Botanists of Philadelphia. " A Preliminary List. Circular 

 Letter dated October 30, 1895. 



18. "The Need of Competent Plant Doctor^.''— Education, XVI : 140, 

 November, 1895. 



19. "Some New Ideas Ethno-Botany. " — Brief of Lecture. Evening 

 Telegraph, Thursday, December 5, 1895. 



20. "Donations to the Botanical Museum.*' — The Pennsylvanian, 

 December 2, 1895, p. 3. 



21. " Ethno-Botanic Gardens. "—Science, N. S., Ill: 203, February 7, 

 1896. 



22. " The Purposes of Ethno-Botanj.''— Botanical Gazette, XXI: 146, 

 March, 1896. American Antiquarian, XVII : 73, March, 1896. 



23. "Is the Pumpkin an American Plant ? "—/S'cience, N. S., Ill: 

 889, June 19, 1896. 



24. "Some Recent Mexican Publications." — Science, N. S., IV: 539, 

 October 9, 1896. 



25. A Botanical Excursion to Mexico. ' ' — American Journal of Pharmacy, 

 LXVIII : 588, November, 1896. 



26. "Fertile Crosses between Teosinthe and Maize." — Garden and 

 Forest, IX : 522. 



27. "Una Excursion botanica a Mexico." Translation by Dr. 

 Nicolas Leon. — El Tiempo, Diario Catolico, Ano XIV, number 3968. Viernes, 

 4 de Diciembre de 1896 (Friday, December 4, 1896). 



28. "Would make a good Park." — Public Ledger, February 1, 

 1897, p. 9. 



29. "Notes on the Hybrid of Maize and Teosinthe." — Garden and 

 Forest, X : 48, February 13, 1897. 



30. "A Communication." — The Pennsylvanian, February 13, 1897. 



