MANUAL 



BRITISH MARINE ALGM 



GENERIC AND SPECIFIC DESCRIPTIONS OF ALL THE KNOWN 

 BRITISH SPECIES OF SEA-WEEDS. 



WITH PLATES TO ILLUSTRATE ALL THE GENERA. 



WILLIAM HENRY HARVEY, M.D., M.R.I.A. 



KEEPER OP THE HERBARIUM OF THE UNIVERSITY OF DUBLIN ; AWD 

 PROFESSOR OF BOTANY TO THE ROYAL DUBLIN SOCIETY. 



LONDON : 

 JOHN VAN VOORST, PATERNOSTER ROW. 



M.DCCC.XLIX. 



