Under the City Corporation: Burnham Beeches, Buckinghamshire Coulsdon Commons, Surrey .
The Thames forms part of the Gloucestershire-Wiltshire boundary to a point below Lechlade; thence for a short distance it separates Gloucestershire from Berkshire; after which it separates successively Oxfordshire and Berkshire, Buckinghamshire and Berkshire, Middlesex and Surrey, and finally, at its estuary, Essex and Kent.
At Cambridge he obtained fossil shells from the Pleistocene deposit at Barnwell; in the Vale of Wardour he discovered in Purbeck Beds the isopod named by Milne-Edwards Archaeoniscus Brodiei; in Buckinghamshire he described the outliers of Purbeck and Portland Beds; and in the Vale of Gloucester the Lias and Oolites claimed his attention.
During the years 1632-1639 he received the livings of Hackney (1633); Oddington, Oxfordshire; Ickford, Buckinghamshire (1636); and Newington, Oxfordshire; besides being a prebendary of Gloucester from 1632.
At the dissolution a plan was set on foot for the creation of a new bishopric from the spoils of the religious houses, which was to include Bedfordshire and Buckinghamshire with Dunstable as cathedral city.
Thus a series of arrays of beech leaves, gathered, subject to the precautions indicated, from each of loo beech trees in Buckinghamshire by Professor Pearson, gave 16.1 as the mean number of veins per leaf, the standard deviation of the veins in the series being 1.735.
In November 1660 by his father's death he had become Viscount Valentia and Baron Mountnorris in the Irish peerage, and on the 20th April 1661 he was created Baron Annesley of Newport Pagnell in Buckinghamshire and earl of Anglesey in the peerage of Great Britain.
The earl of Buckinghamshire declared him to be the most amiable negotiator he had ever met.