1902.] natural sciences of philadelphia. 657 



The Absecon (Atlantic City) Beach Strand. 



Dr. Thomas S. Gitbens has furnished me with the results of 

 some observations upon the flora of Absecon Beach. The coast in 

 the neighborhood of Atlantic City is occupied largely by human 

 habitations, so that the flora has been modified except at several 

 places about two to four miles south of Absecon Inlet. The geog- 

 raphy of the island may be shown by the accompanying diagrams 

 in fig. 6. 



Absecon Beach 



Fig. 6. 

 The upper figure is an outliue map of Absecon Beach with the eco- 

 logic lines A, B, C, D drawn across it. The lower figure represents 

 cross-sections of the beach along the lines A, B, C, D, and shows the 

 relative elevations along each line. The letters and numerals designate 

 different zonal areas, where the plants designated by similar numerals 

 are referred to the several zones in the accompanying list, made by Dr. 

 Thomas S. Githens. 



The region, botauically considered, has been divided by Dr. 

 Githens in his notes'^ as follows : 



Area I. — Beach. 



Zone (a) — Tide Beach. 

 Zone (6) — Second Beach. 



* These notes confirm the observations of the writer, published in the 

 Proceedings of the Academy of Natural Sciences of Philadelphia for 1900, 

 but the terminology is somewhat different. 

 42 



