The London Natural History Society (or LNHS as it is commonly known) is a local natural history society within the UK concerned with recording the wildlife of London, covering a circular area covering a 20-mile radius from St. Paul's Cathedral.
[6] The LNHS traces its roots back to 1858 when the Haggerstone Entomological Society was founded in June of that year.
By the end of the year, it had 35 members, who met one evening per week in the Carpenters' Arms, a pub in Haggerston.
In 1886 four boys at the Grocers' Company School in Hackney founded the Clapton Naturalists' Field Club, which met in members' houses.
Local groups were formed in some parts of London, and the programme of activities included field trips, regular indoor meetings, exhibitions, and even music recitals and fund-raising dances.