218 THE BOTANISTS OF PHILADELPHIA. 



4. " Tetramerism in Lilium auratura, Lindl." — Bulletin Torrey Botan- 

 ical Club, II : 32. August, 1874. 



5. "Oaks and 'Mistletoe.^ ^—Bulletin Torrey Botanical Club, IV : 13. 

 (1873). 



6. "Fertilization of Asarum Canadense.'^— Bulletin Torrey Botanical 

 Club, IV : 21. (1873.) 



7. "Dr. Torrey and Torrey 's Fea]^.''— Bulletin Torrey Botanical Club, 

 V: 18. (1874.) 



8. "On Aspleuium ebenoides. ' '—Proceedings Academy Natural Sciences, 

 Philadelphia, 1874 : 155. 



9. "Geographical Distribution of the Ferns of North America."— 

 Bulletin Torrey Botanical Club, VI : 1. (1875.) 



10. " Notes upon Anychia dichotoma.'" —Bullet in Torrey Botanical Club, 

 VI : 61. (1875.) 



11. "Note upon Dr. Torrey 's First Trip to the New Jersey Pines, 

 prefixed to a letter of his, July 9, 1818.''— Bulletin Torrey Botanical Club, 

 VI : 82. (1876.) 



12. "Notice of the Botanical Correspondence of Zaccheus Collins in 

 possession of the Academy of Natural Sciences of Philadelphia. "—Pro- 

 ceedings Academy Natural Sciences, Philadelphia, 1876 : 81. (1876.) 



13. "Southern Localities of Lygodium palmatum. " — Bulletin Torrey 

 Botanical Club, VI : 232. (1878.) 



14. " Obituary notice of Robert H. Browne. " — Bulletin Torrey Botanical 

 Club, VI : 291. (1879.) 



15. ' ' Aspidium aculeatum in Pennsylvania. ' ' — Bulletin Torrey Botanical 

 Club, VI : 291. (1879.) 



16. "Aspidium aculeatum at Bushnellsville Clove in Catskill Moun 

 tains."— Bulletin Torrey Botanical Club, VI : 331. (1879.) 



17. "Notes of a Botanical Excursion into North Carolina." — Bulletin 

 Torrey Botanical Club, VI : 331. (1879.) 



18. " Dissent from Mr. Meehan's Views upon the Timber-line of high 

 Mountains." — Proceedings Academy Natural Sciences, Philadelphia, 1880 : 

 345. (1880.) 



19. " Herbarium of the Academy of Natural Sciences of Philadelphia." 

 Bulletin Torrey Botanical Club, VIII : 42. (1881.) 



20. "The Muhlenberg Herbarium." — Bulletin Torrey Botanical Club, 

 VIII : 80. (1881.) 



21. "Aspidium Lonchitis, Swz. in Colorado." — Bulletin Torrey Botanical 

 Club, VIII : 105. (1881.) 



