Essex turned the screw on Gloucestershire as they made 400 before leaving the hosts struggling to avoid the follow-on.
All-rounder Greg Smith is moving from Derbyshire to Essex, who have also tied star bowler David Masters to a new deal.
Alex Gidman hit 70 not out to see Gloucestershire to a seven-wicket win over Derbyshire.
Chris Rogers has quit as Derbyshire captain and will be replaced by Greg Smith.
Inclement weather ruined a potentially exciting fourth day between Derbyshire and Northamptonshire.
Derbyshire completed a 185-run victory over Gloucestershire on the final afternoon to go top of Division Two.
Lancashire moved to the brink of the FP Trophy quarter-finals with a 114-run victory over Derbyshire.
Charl Langeveldt and Wavell Hinds were on form as Derbyshire beat Middlesex by seven wickets.
Kolpak all-rounder Greg Smith has signed a new two-year contract with Derbyshire.
England must pick Alex Hales as an opening batsman at the 2015 World Cup, says Sir Ian Botham.
New Zealand v Sri Lanka Test S
Australia v India Test Series
Eoin Morgan's first act as England captain should be to push himself back up the order, says Bob Willis.
Australia and New Zealand will co-host the 2015 Cricket World Cup from February - here's a taster of what's in store.
Steven Smith proved his captaincy skills by guiding Australia to victory over India, says Mark Butcher.
Watch this video to whet your appetite for the IPL, which will be shown on Sky Sports in 2015.
South Africa's Dale Steyn should be lauded as the finest seam bowler in the world, says Bob Willis.