PREPARING FOR IMMEDIATE PUBLICATION. 
THE. POTAMOGETONS 
(POND WEEDS) 
OF THE 
BRIFISH ISLES: 
rE Wr ITH DESCRIPTIONS OF ALL THE SPECIES, VARIETIES, “AND liv sive. 
aby ‘ALFRED. FRYER. Tlustrated . by ROBERT ‘MORGAN, a: LS. 
The object of this work \ isto” snpply e. long-nectied. get of good snd eliable Illus. ; 
»: trations of British Potamogetons. — Both Descriptions and. iba nea ined ii elude : 
_ the varying forms and states as. well as the generally reeogr p S : 
‘Synonymy, though not aiming at absolute completeness, 
_working purposes, ‘An attempt will be made towards a natural 
“species founded on the changes of form in their progressive sta 
than on the comparatively: limited distinctions afforded ayhe fruit, i 
‘which will form a special feature. 
‘The work will he issued i in 15 tobthiy ae: ecieetta on spptionaaae 
& 
| Now ready, price 23, 6d, 
INSULAR FLORAS. 
A ‘Lecture delivered by Siz J. D. HOOKER, €:B., before the British Association 
for the advancement of Stience ai Nottingham, August 27, 1866, 
Now ready, Second Edition. 
N DBOOK ‘OF BRITISH MOSSES, 
Containing all that are known to be natives of the British Isles. 
i Winches” in Noein 
By ARTHUR G. BUTLER, PhD., F.LS., F.28,, FES, 
“The. whole forms a large and handsome volume of between 300 and 400 98, With 60 + 
FLW. FPROWRAWK, oe coloared oy hand, ; 
“HANDBOOK OF THE BRITISH ‘FLORA: 
4 Description of the Flowering Plants and Ferns Indigenous 
to or Naturalised in the British Isles, ae - 
By. GEORGE BENTHAM, FRS. 
6th Sey Revised by Sir J. D. steers B., K.CS. a F. RS. he 
