Proceedings Am. Philos. Soc. Vol. LV. 



Plate XIV 



Fig. I. Denuded area in salt marsh at Lold Sprnig Harbur, Long island, 

 riddled bj^ burrows of fiddler crabs and reinvaded by pioneer vegetation of 

 samphire, July, 1914. 



Fig. 2. Gravelly area at inner margin of salt marsh at Cold Spring Har- 

 bor, Long Island, July, 1914, controlled during low tide by fresh water and 

 occupied by Lilaeopsis lineata, which is submerged at high tide. 



