PREFACE. 



An interval of two hundred years has elapsed since the 

 publication by the celebrated Ray of the first Catalogue of 

 the plants found in the county of Cambridge, and forty 

 since the third and last edition of Relhan's Flora Canta- 

 brigiensis appeared. As even the latter of these works has 

 now become nearly obsolete, owing to the great advances 

 which have been made in Botany since Relhan wrote, a new 

 Catalogue seems to be desirable. I therefore venture to 

 place the present work before botanists notwithstanding its 

 many imperfections. 



The list contained in this book is the result of my own 

 researches, extending over a long period, combined with 

 those of other botanists, who have kindly informed me of 

 their discoveries and usually directed me to the spots where 

 the plants grew. When I have seen the plant in any loca- 

 lity, the station is usually recorded as resting upon my own 

 authority; for I unfortunately many times neglected to 

 make a note of the name of my original informant. Those 



