text: Shares in Slough , which earlier announced a 14 percent rise in first-half pretax profit to 37.4 million stg , climbed nearly six percent , or 14p to 250 pence at 1009 GMT , while British Land added 12-1 / 2p to 468p , Land Securities rose 5-1 / 2p to 691p and Hammerson was 8p higher at 390 .