CONTENTS 



Page 

 Introduetion - - - ^48 



Geology and Physiography 249 



Climatology - - 255 



Part 1— Ec-ology - 259 



The Bottom-lands - - 259 



The Bottom-land Swamp -- 263 



The PJirch Bottom-land - - 265 



The River-bank Association - 267 



The Forests 269 



The Lowland Forest - 269 



The Hemlock Forest - 269 



The I-iricdendron Forest 2.-: 



The rjdand Forest - - 276 



The (,'liff-top -..- 276 



The Piue Forest '. - 279 



The Oak Forest - 280 



The Kock Dwelling Plants - - 281 



The rnitolium Society - - 287 



The Caves — - - - 288 



Dry Caves , 288 



Wet Caves .'- 289 



The (iuild of Shade-loving Evergreen Kerbs 290 



The ri)land Thickets - 293 



The Sumac Thicket 293 



The Old Field Association 294 



Economic A selects - - 296 



Part IT— Flora 303 



Introductory — 303 



Bigelow 's List - 304 



Annotated Flora - - 306 



Synopsis-Summary - - - 339 



