HOGG Twitter @HOGGroup
@ferwen: Charles Lapworth, the man who solved the great Cambro-Silurian controversy, was born #OTD, 1842. In 1879, he encouraged a small group of women at Newnham College to investigate the Silurian and Ordovician rocks of North Wales. #WomenInSTEM #histsci
h J R
HOGG Twitter @HOGGroup
@talloaksfrom: HMS Beagle sail plan, 1831, in the collection of @LinneanSociety #Darwin #FLS #LinneanAtBH
h J R
HOGG Twitter @HOGGroup
@tomsharperocks: #OTD in 1820, Cambridge geologist Adam Sedgwick was in #LymeRegis and noted in his journal 'after breakfast purchase fossils of Miss Anning'. He spent £3 2s on 'various fossils' and 'part of Ichthyosaurus' according to a receipt signed by #MaryAnning.
h J R
The Freemasons’ Tavern where the Geological Society was founded in 1807
Early geologist in examining columnar basalt, Cader Idris, in: Robert Bakewell, Introduction to Geology. 1813.
Geologist of the Geological Survey examining the unconformity at Portishead, in: Memoirs of the Geological Survey of Great Britain, Volume 1. 1846.
‘Essai d’une carte geólogique di globe terrestre’ This is the first attempt of a geological map of the globe, by Ami Boue´ in 1843; this is the published version dated 1845. Image credit: Duncan Hawley © CC-by-NC
Marie Stopes, palaeobotanist, working in her laboratory, 1904. Her geological achievements and those of other women in geology feature in HOGG publications. Image credit: Marie Stopes International (with permission, in being used to further understanding about Dr Marie Stopes.)


“To understand a science, it is necessary to know its history.”
Augustus Comte (1798-1857)

HOGG (The History of Geology Group) exists to encourage interest in the history of geology, and the events and personalities that have shaped the way in which it is studied and practised today.

For details of our latest news and topical snippets on the history of geology please follow our Twitter feed (which can also be seen on the left of this page).

Membership is open to anyone with an interest in the development of knowledge about the earth and geology and how this has been represented (e.g. through geological maps). There is no requirement to be a Fellow of the Geological Society of London or have any other geological credentials, and we encourage interest from young people.

HOGG members are a network of knowledgeable enthusiasts who exchange and discuss information and queries about history of geology matters via a dedicated online mailing list.

HOGG holds at least three meetings each year, and members are eligible for reduced registration fees. From time-to-time other meetings and other activities are added to HOGG’s programme.

Details of forthcoming HOGG meetings can be found here.

HOGG produces occasional publications based on collection of themed papers from meetings and other topics relating to the history of geology, edited by HOGG members.

For further details and how to join please see the Join Us page.

HOGG is affiliated to the Geological Society of London


Forthcoming Meeting:

Oct 2021 - The history of petroleum exploration: evolving technologies based on a handful of underlying principles.

The first geological principles explaining petroleum finds were established in the early 1900s in exploration on land. Petroleum exploration progressed when technologies enabled these first principles to be applied to ‘hidden’ prospects (e.g. offshore).

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