The Australian, who made his English debut for Warwickshire in 1990, scored 105 between lunch and tea and finished unbeaten with 194 in a total of 342 for 3.
Mark Alleyne returned career-best figures of 5 for 32 as Sussex were bowled out for a meagre 157 after winning the toss at Bristol. But that score was made to look respectable as Gloucestershire crashed to 72 for 8 in reply before a stand of 66 between Mike Smith and Martyn Ball took them to 138 for 8 at the close.
The opener Mark Butcher scored a classy hundred - his second in successive innings - in front of the England selector David Graveney as Surrey dominated against Leicestershire at The Oval. By the close they had three batting bonus points and were in sight of their fourth at 340 for 6 off 104 overs, with the England batsman Graham Thorpe in imperious form on the verge of what should be his fourth century of the summer. His 94 not out kept Surrey on target after they had lost Butcher for a fine 120.
Paul Weekes' first Championship hundred of the season, plus half-centuries from Jason Pooley (67) and Mark Ramprakash (66), gave Middlesex a solid platform as they ended the day on 358 for 5 off 104 overs against Kent at Canterbury.Reuse content