viii 



INTRODUCTION. 



various quarters of the kingdom, and the sister 

 island. 



More recently these applications have been 

 supported by the recommendation of several 

 scientific algologists ; and I have at length 

 yielded to the general desire, and in the fol- 

 lowing pages have given publicity to the me- 

 thod I have myself for many years adopted, 

 and have found to be most successful. 



Specimens laid out by myself, in the manner 

 hereafter to be described, have been repeatedly 

 spoken of in terms of high commendation by 

 Sir William Hooker, Professor Harvey, Mrs. 

 Griffiths, and other algologists.* 



This is not, however, the only object I have 

 had in view. I have, in addition, compiled a 

 list of all the marine Algse that are at present 

 known and recognized as British, including 

 even the latest discoveries, as described in Dr. 

 Harvey's beautiful work, the ' Phycologia Bri- 



* At the Annual Meeting of the Koyal Cornwall Poly- 

 technic Institution, Falmouth, held Sept., 1852, the author 

 was awarded the silver medal, being the first-class prize in 

 Natural History, viz., for three vols., imperial folio, con- 

 taining specimens of marine Algae. 



