Captain Glen Chapple took his 900th first-class wicket and moved beyond 8,000 runs to keep Lancashire on top in their LV= County Championship game against Gloucestershire.
Chapple's innings of 14 contributed to his side's 310 all out and he then claimed two scalps as Gloucestershire finished on 143 for four in the Division Two match at Aigburth, Alex Gidman leading the resistance with 54 not out
Only an hour's play was possible in the morning but the session was dominated by Gloucestershire's young seamer Craig Miles.
The 18-year-old conceded 21 runs in his opening two overs before dismissing Simon Katich for 95, Wayne White, yorked for a golden duck, and Steven Croft for 60 in the space of 23 balls.
Liam Norwell supported Miles by removing Gareth Cross for a single as Lancashire fell from their overnight 175 for four to 232 for eight at lunch.
After the interval, Miles completed the second five-wicket return of his career when Chapple nicked a delivery to the safe hands of Gidman at slip.
However, a sensible last-wicket partnership between Kyle Hogg and Simon Kerrigan frustrated the visitors' attack.
The pair added 66 before Hogg was bowled by Miles for 45 – but, by that stage, Lancashire had gained their third bonus point.
Miles finished with 6-88, his third career-best effort in successive matches this season following a six-wicket haul against Worcestershire and 4-83 versus Hampshire.
Perhaps Gloucestershire’s exasperation at the last-wicket partnership contributed to Michael Klinger's dismissal, the skipper edging Chapple to the safe hands of second slip Andrea Agathangelou to enable the Lancashire skipper to reach a famous landmark.
Chris Dent and Dan Housego mounted a brief recovery with a 39-run stand for the third wicket, yet Chapple claimed his 901st four-day scalp when the former shouldered arms to fall lbw for 18.
Housego's loose slash on 29 gave White his first wicket, Cross taking a good catch behind the stumps.
The Lancashire wicketkeeper pouched his second victim of the game when Hamish Marshall was caught down the leg side off Hogg for only four.
At that point, Lancastrian hopes of being in a position to enforce the follow-on were quite high but Gidman combined with Benny Howell in a gutsy unbroken stand of 77 for the fifth wicket. The former reached his half-century off 84 balls seven overs before the close of play.
At stumps, Howell was on 32; he and Gidman had left their side 167 runs in arrears. Home supporters, though, will take some persuading that it was anything but Chapple's day.