2 INTRODUCTION. 



Probably many Members of the Palaeoiitographical Society have specimens in greater 

 number and more perfect preservation than those in my collection, especially as to the 

 branches and roots of Calamites, the first genus of fossil plants vi^hich it is my 

 intention to describe, but my specimens show structure in a state of perfection that 

 has not often been met with. 



On a future occasion other genera of fossil plants may be described and illustrated 

 should an opportunity be afforded me. 



My acknowledgments are due to Mr. Cuttell, lapidary, for his skill in slicing and 

 mounting the sections of fossil wood, and to Mr. J. N. Fitch, lithographer, for the care 

 and truthfulness with which he has executed the plates illustrating the specimens. 



