Jennywren: The good news is that I've located the relevant statute.
The bad news is that the offence libelled covers an absolute multitude of offences that could be committed in a street to the obstruction, annoyance or danger of residents or passengers. The evidence of only one witness was required Even in the mid-19th century it's astonishing to think that some of the behaviour prohibited would ever take place in public. It forbade:
Exposing for show hire or sale any horse or other animal
Shoeing or farrying a horse
Allowing a bull to be in the street without a rope through its nose ring
Allowing a ferocious dog out unmuzzled
Allowing a rabid dog out in public (!)
Allowing a dog suspected of Canine Madness (!) out other than at specified times
Slaughtering or butchering cattle (unless run over in an accident)
Not having proper control of a horse drawn wagon, cart or carriage
Driving two carts without a suitable halter
Furious horse/carriage driving
Furious cattle driving
Leaving a carriage too long at the roadside
Pulling a tree, iron beam or stone without proper guidance
Leading or riding a horse on a footway
Leaving furniture or goods on a footway
Carrying an advertisement on horseback or on a carriage (!)
Hanging clothes or linen on a rail or fence
Writing on walls
Affixing bills or notices to a church, chapel or schoolhouse
Conveying slaughtered animals by cart without covering them up (!)
Rolling an item on the footway unless delivering it across the footway
Placing a clothesline across the street
Loitering for prostitution
Indecent exposure
Offering for sale an indecent publication
Discharging a firearm or firework
Flying a kite (!)
Making a slide in snow or ice (!)
Cleaning a cask or tub
Leaving building materials on the ground not enclosed for safety
Beating a carpet before 8 a.m.
Fixing a flower pot on an upper window without ensuring it will not be blown down
Throwing anything from a roof (except snow when it is safe to do so)
Permitting a person to stand on an outside widow sill to clean or paint it, unless the window is a basement one
Using threatening words likely to provoke a breach of the peace
Singing an obscene song or using obscene language
Jostling or annoying a person passing
Letting smoke or steam residue fall to the street
Leaving a cellar open without protecting it by a fence or rail
Throwing dirt or ash into the street, except for sand in times of frost
Keeping a pigsty to the front of a street
I suspect some of these were prosecuted rather more often than others, but all were forbidden by Clause 251.
