Transaction in Own Shares

PURCHASE OF OWN SHARES TO BE HELD IN TREASURY                 

1) Date of the purchase:

22 August 2008

2) Number of Ordinary Shares purchased to be held in Treasury:

400,000

3) Highest and lowest price paid per share (excluding expenses):

507.5p

4) The issued share capital of the Company following this buy-back will be:

Ordinary shares - 47,789,753 including shares held in treasury
Ordinary shares - 47,389,753 excluding shares held in treasury

5) Name of contact for queries:

Kerry V Higgins
020 7743 1089

6) Name of authorised Company official responsible for this notification:

Kerry V Higgins
for BlackRock Investment Management (UK) Limited
Secretary

7) Date of notification:

22 August 2008