ith 12 Pintes, Be. plain, 21s. "(iain net, 
POTAMOGETONS 
(POND WEEDS) 
OF THE 
. BRITISH ISLES. 
DESCRIPTIONS OF ALL THE Species, Varieties, anp Hypripa. 
LFRED FRYER, A:L.S. Llustrated by ROBERT MORGAN, F.LS. 
The work will be issued in 5 quarterly sections of 3 parts each, 
‘iene on application. 
By the Rev. M. J. ‘BERKELEY, M.A. FDS. 
fement of nearly 400 pages by Wornnner tow G. Suits, F.L.S., bringing 
the work down to the present state “of Science. ‘Two vols., 24 Coloured 
‘Plates, 36s. net. The pags serie tah! 12s, 
ee abn price os. 6d. 
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