388 THE BOTANISTS OF PHILADELPHIA. 



University of Minnesota. Dr. and Mrs. Heller started in 

 1898 on a botanical trij^ to the newly acquired tropical 

 island, Puerto Rico, under the auspices of the New York 

 Botanical Garden. They returned in June, 1899, with a 

 large collection of plants, especially from the northern side 

 of the island. 



Bibliography. 



1. " Notes on the Flora of North Carolina." — Bulletin Torrey Botanical 

 Cluh, XYIII : 186, 1891, pp. 7. 



2. "A Botanical Tri-p.^^— College Student, Franklin and Marshall 

 College, 1891. 



3. "On the Flora of North Carolina and Contiguous Territor\\" — 

 Memoirs Torrey Botanical Cluh, III, No. 1, 1892, pp. 39. 



4. " Aspleniuni Bradleyi, Eaton." — Bulletin Torrey Botanical Club, 

 XX : 18, 1893, pp. 2. 



5. ' ' Preliminary Eeport on the Flora of Luzerne County, Pennsyl- 

 vania."— £»?7f^m Torrey Botanical Club, XX : 55, 1893, pp. 13. 



6. ' ' Preliminary List of the Lichens of Lancaster County, Pennsyl- 

 vania, Lancaster, Pennsylvania," Februar\", 1893, pp. 4. 



7. " Plants from Virginia new to Gray's Manual Range, with Notes 

 on other Species. " — Bulletin Torrey Botanical Club, XXI: 21, 1894, pp. 7. 



8. "A B.eqxiest.''— Bulletin Torrey Botanical Club, XXI: 314, 

 1894, pp. 7. 



9. " Botanical Exploration in Southern Texas during the Season of 

 1894." — Contributions to Herbarium, Franklin and Marshall College, Lan- 

 caster, Pennsylvania, No. 1, February 6, 1895. Plates 1-9, pp. 116. 



10. " Notes on Kuhnistera. " — Bulletin Torrey Botanical Club, XXIII: 

 117, 1896. Plate 262, pp. 9. 



HENRY KRAEMER. 



Henry Kraemer was born in Philadelphia on July 22, 

 1868. His parents died when he was in his third year. 

 Thrown upon the world, he was admitted to Girard College, 

 from which institution he graduated in 1883, being awarded 

 the first prize scholarship. On January 1, 1884, he was 



