INTRODUCTION. B:0:0:4):¢ 
R. penicillatus, Caltha Guerangerii, Tulipa sylvestris, Valeria- 
nella carinata, Geranium pyrenaicum, Sedum dasyphyllum, 
Erigeron acre, Picris arvalis, Cochlearia Armoracia. 
The district about Rycote yields Rumew maritimus, Triglochlin, 
Ranunculus hederaceus, Chenopodium polyspermum, Rosa Reuteri, 
R. subcristata, R. verticillacantha, Rosa systyla, Fritillaria. 
Dorchester and its neighbourhood give Acorus, Butomus, 
Anagallis cerulea, Spergularia rubra, Rosa tomentosa var. sub- 
globosa, Rk. mollissima, Brassica sylvestris, Agrostis nigra, Rosa 
scabriuscula, Ceratophyllum, Hyoscyamus niger, Erysimum 
cheiranthoides, Nasturtium amphibium, Ptarmica vulgaris. 
7. The Thames or Lower Thames forms a district about 
16 miles long, from Hilton on the east border near Bledlow to 
Sonning; and about 10 miles wide from Goring to Henley; 
entirely in the Thame drainage. Its northern boundary is 
the Thame district, the line being drawn along the separation 
of the Upper Greensand from the Lower Chalk. On the east it is 
bordered by the county of Bucks, which stretches round south- 
wards to Henley, where the Thames divides it from Berks west- 
wards to Mongewell. The course of the Thames is so well- 
known that space need not be occupied in describing the various 
beauties of the river scenery in its southern journey by South 
Stoke, Goring, Whitchurch, Maple Durham to Reading, the 
names of these places being household words, and their present- 
ments, more or less accurate, having been hung on the Academy 
walls from year to year. Lovely as is this riparian portion of 
the district, the interior offers almost as much to the pedestrian ; 
the number and variety of its woods being most remarkable, 
and whether these consist of trees of the translucent leaved 
beech in early summer on the high grounds of Chinnor or 
Stokenchurch, or the smaller coppices in which the white beam 
is the prevailing feature, as on the northern slopes, or of that 
delightful blending of oak, beam, and beech about Nuffield, 
rising as these do in gradual rounding slopes with all the 
charming sweep peculiar to the chalk formation; or as at 
Ipsden where fine hollies, grand old yews, slender cherries, and 
picturesque thorns are mingled in rich luxuriance; in either 
instance the visitor will enjoy their striking beauty, intensified 
ag it will be, when through their vistas he sees stretched out 
