'2-10 Agricultural Capabilities of the Neto Forest. 
and for Forest duos and pannage 178?. 18s. 7rf. ; whilst Mr. 
Dickenson pays 4'J()/. as rent for his farms, and 326Z. \s. Q>d. as 
additional rent for drainage and other works. 
VII. Geology.* 
The New Forest is orcupied by five formations belonging to 
the Middle and Upper Eocene groups, viz., the Lower Bagshot, 
Bracklesham, Barton, Upper Bagshot, and the Fluviomarine or 
Headon Beds. Tlie lowest in the geological scale, the Lower 
Bagshot Sand, is found within the Forest limits only at the 
extreme northern corner, where it underlies the gravel of the 
highest ground between Godshill Enclosure and Woolmer Post, 
and comes to the surface in the "bottoms" which run up from 
the Avon Valley towards Bramshaw Telegraph. 
The Bracklesham beds likewise underlie the gravel covering 
of the highest part of the Forest between Woolmer Post and 
Black Bush Plain, from which they extend by Eyeworth, Amber- 
wood, Sloden, and Woodford Bottom, in a south-westerly direction, 
in a band about 2^ miles broad. 
The Barton Clay also forms the substratum of the gravel on 
the highest ground at Black Bush Plain. The division between 
it and the Bracklesham beds is roughly defined by a line drawn 
in a south-westerly direction from the Forest boundary, where it 
is crossed by the road from Bramshaw to Salisbury, by Eyeworth 
Lodge and Broomv Lodge, towards Ringwood. Its breadth at 
the western boundary of the Forest is about two miles from the 
line just defined to near Picked Post ; it underlies the gravel on 
Picked Plain, and occupies an irregularly shaped area to the 
south of Boldrewood, comprising the Burley and Oakley enclo- 
sures. From Boldrewood Lodge the southern boundary runs in 
an irregular line between Minstead and Lyndhurst, by Irons Hill 
Lodge and Ashurst Lodge to the Forest boundary near Langley 
Wood. The breadth of this formation, measured in a north- 
westerly direction from this point to Bramshaw enclosure, is 
nearly ten miles. 
The Upper Bagshot Sands extend south from Picked Plain by 
Burley and Rhinefield to Boldrewood Lodge, lapping round the 
Barton Clay, the southern edge of which they follow in a belt of 
varying breadth by Lyndhurst, Pondhead, and Culverley, to 
Dibden Bottom. The Fluviomarine or Headon Beds occupy a 
considerable part of the south of the Forest. The division between 
* This section of the paper has been kindly re-written, in explanation of the 
accompanying map, by my friend Mr. T. Codrington, F.G.S., who has fully 
dcsci ilied the superficial deposits of the south of Hampshire in the ' Quarterly 
Journal of the Geological Society,' for November, 187U (vol. xxv., p. 528.) — Edit. 
