Letter from Sir Benjamin Thompson of Munich to Lord Sheffield [John Baker Holroyd, 1st Earl of Sheffield], 18 Nov 1791. Describing the condition and people of Bavaria. Speaking of the Elector's troops: '... I know of no Troops that are so well and so comfortably clothed as ours, both for Summer and Winter ...'. Giving details of the crops, minerals and commerce of Bavaria. 'It would be difficult,'he writes, 'to convey to your Lordship an adequate idea of the Ignorance, Superstition and corruption which pervade and darken every part of this neglected Country.' Says that the clergy and nobility hold a monopoly of the beer in Bavaria: '... which is the great source of their riches, and on that account Drunkenness must be encouraged.'

Autograph, with signature.

Papers of Sir (Alfred) Chester Beatty and the Selection Trust, [1906-1980], comprising extensive information on mining for base metals, diamonds and oil, in countries including the USA, Canada, Mexico, Nicaragua, Guatemala, Chile, Brazil, Peru, Burma, Australia, South Africa, Angola, Tanzania, Northern Rhodesia, Sierra Leone, Gold Coast, French Guinea, Botswana, Hungary, Russia, Yugoslavia, the USSR and the North Sea; papers relating to the central administration and history of the Selection Trust, notably photographs, notebooks and printed materials; personal material concerning Sir (Alfred) Chester Beatty and his son, Alfred Chester Beatty.

Scotch Mines Company records comprise the original charter of incorporation and a contemporary copy 1729; court minutes 1819-1861; agreements, leases and other papers 1729-1814; list of proprietors 1843; dividend book 1803-32 and 1861; journals 1755-1772 and 1812-1827; treasurer's cash and bill book 1776-1798 and ledgers 1755-1811.

Scrapbook of cuttings collected and notes made by Dr John Percy between 1864 and 1888, including transciptions of a series of twelve lectures given at the Royal School of Mines in December 1863 and January 1864, as published in 'Chemical News' between January and August 1864. The lectures, entitled 'Chemical Geology', are annotated and cover subjects such as silicon, alumina, sulphur and diamond.

These cuttings from 'Chemical News' are interspersed with those from several other publications, primarily the 'Engineering and Mining Journal', 'Mining Journal', and 'The Times' newspaper, as well as handwritten notes by Percy. Content mostly involves diamonds, diamond mining, and other mining activities.

'Geological researches round London', comprising five volumes of manuscript copies, by a number of hands, of notes made by James Mitchell principally on the geology and botany of London and the Thames Valley during his residence in the City, [1832-1840]. Also includes some cuttings of Mitchell's published articles. An index to the papers appears at the front of each volume and the titles or subjects listed are:

VOLUME 1

Loampit Hill; Cavern on the side of Blackheath; Pit in the old Charlton Parish; Shooters Hill; Pit at New Charlton near Woolwich; Sundridge Park near Bromley; Erith; Crayford; Bexley Heath; Dartford; Road from London to Gravesend; Greenhithe Park; Northfleet (including fossils and plants); Shorne; Holly Hill; Gadshill; Pits at Chatham; Gravesend to Wrotham; Town Malling; Quarry near Maidstone; Kits Cotty; Isle of Sheppey; Cliff at Reculver; Margate Sands; Chatham to Canterbury; Key Street; Sittingbourne; Canterbury to Margate; Isle of Thanet; Sandwich; Richborough Castle; Channel Flints; Dover to Folkstone; Hayes Common; Pratts Bottom; Knockholt Beeches; Knockholt to Tunbridge; Tunbridge to Maidstone; London Clay in Kent; Sand found in the Thames; Brickmaking; Useful applications of Chalk; Limeburning; Great Lime; Lias Lime; Cement Stone; Heights in Kent; Manufacturing of Whitening.

VOLUME 2

Heights of various places in Middlesex, Surrey and Sussex above the low water according to the Trigonometrical Survey; London Clay; Remains of quadrupeds; Of gravel; Animal remains in flint found in the Clay; Kensington; Hampstead; Highgate; Tottenham Marshes; From London to Edgeware; Stanmore Common; Harrow on the Hill; London to Uxbridge; Amersham; Watford; Hatfield Herfordshire; Well at Beaumont Green; Ware; Hertford; Ware to Cambridge; London to Romford and Brentford; Brook Street; Warley Common; London to Chigwell and Ongar; Ongar; London to Cambridge by Epping; Saffron Walden; Alluvial soil on the banks of the Thames; Purfleet; Artesian Well in the Marsh near Purfleet; Button's Breach; Gray's Thurrock commonly called Grays; London to Woodbridge; Chiselhurst; Gravesend; Dartford Marshes; Orpington; Wandsworth; Knightshill; Kingston upon Thames; Croydon; Head of the Wandle; Carshalton; Beddington Surrey; Mitcham Common; Wells at Mitcham; Ashtead Surrey; Ewell Surrey; Carshalton Downs; Croydon to Merstham; London to Merstham; Merstham; Well below the Church at Merstham; Gatton Park; London to Reigate by Sutton; Reigate; London to Godstone; Godstone; The Bourne; Tilburstow; Bletchingly; Fuller's Earth Pits; London to Dorking; Dorking to Limepits; Dorking to Leith Hill; Leatherhead to Guildford; Guildford; Chelsworth House; Langdon Hills Essex.

VOLUME 3

New River Company's well at the end of Tottenham Court Road; Upper Clapton; List of minerals and fossils in the pits at Muswell Hill by Frederick Purdey; Brentford; Hounslow Heath; Hanwell; Wells at Hanwell; Harefield; Enfield; Northan; Cheshunt Street; Watford; Wades Mill; Puckeridge; Much Haddam; Royston; Tring; Strata of Essex; Waltham Abbey; Sewardstone; Epping Forest; Stratford; Dagenham; Ilford; Romford; Upminster; Peckham Rye; Counter Hill; Norwood; Epsom; Sutton; Cheam; Road from Croydon to Limpsfield; Merstham; Bletchingly; Nutfield and Fuller's Earth Pits; Barnes; Chertsey; Plumstead; Sydenham; Dartford Heath; Chiselhurst; Westerham; Farningham; Maidstone; Wrotham; Upnor; Cliff, Cooling and All Hallows; Cuxton; Halling; Isle of Sheppey; Sittingbourne; Windsor; North side of Bagshot Heath; Bagshot Heath; On the Blackheath formation; Druid Sandstone; On the changes produced on chalk flints.

VOLUME 4

Section of the London and Croydon Railway; Of the London Basin; Of the London Clay; Age of the London Clay; Fossil wood in London Clay; Septaria or Cement Stone; Wells in London; Bognor Shells; Woolwich Shells; Mineralogical substances in Middlesex and Essex (Cement Stone, Pyrites, Selenite, Wood, Sulphate of Magnesium); Quartz; Gravel. Series of papers on the construction and description of water wells, including: Foul air - wells; Wells at Sanderstead, Norbury, Epsom Downs, Kent; Air pump used in well digging and well boring; Expense of well digging and well boring; Direction of underground currents; Foul air in Wells in Essex and Middlesex; Beds of sand in the blue clay beneath it; Wells rot each other; Wells at Sheerness and in Sheppey; As to whether digging or boring be preferable; Muswell Hill; Barnet; Hemel Hempstead; Tring; Buntingford; Royston; Hare Street; Danbury; Rochford and Rayleigh; Wallisea Island; Wigborough; Coast near Malden; Braintree; Croydon and the neighbouring Country; Brixton; Forest Hill; Well at Balham Hill; Well at Mortlake; St George's Hill; Kingston to Guildford; Weybridge; Well at Cobham; Godstone; Well at Merstham; Waltham on the Hill; Headley; Reigate; Red Hill Reigate; Dorking; Wells at Normanry and Ash; Wells in the Weald of Sussex; Reading; Newbury; Bexley Heath; Chelsfield and Well Hill; Wells at Margate; Great Baddon; Wells in various places.

VOLUME 5

Superficial strata of the county of Middlesex; Wells in Middlesex; Well at St Mary Woolnoth; Church Fenchurch Street; The Thames Tunnel; Mud and sand carried out by the Thames; Hampstead Heath; Watery action on the surface in Essex; On wells formed by digging and boring in Essex; Stratford in Essex; Chigwell and Chigwell Row; Kelvedon; Copford; Great Wakering; Wakering Marsh; Foulness Island; Walton on the Naze; On the watery action on the surface of the county of Surrey; On the sections at New Cross; on the strata of the of the Jolly Sailor Station of the Croydon Railway; Shirley sand pits; Addington Hills; Croham Hurst; Croydon; Woking Common; Leatherhead; Nettley Heath; Heights above the level of the Thames of places in and about London; On the foul air in the chalk and in the strata above the chalk in the country near London.

Records of the Department of Mineral Resources Engineering of Imperial College, 1908-1992, including departmental history from 1851-1964; course leaflets, 1923-[1989]; newsletters, 1990-1991; reports and reviews, 1938, 1987-1992; Professorial correspondence, 1908-1935; papers of the Merricks Committee, 1930-1932; Rectors' correspondence, 1955-1981; correspondence relating to the headship of the department, 1967-1979; change of name, 1965-1975 (KMIN); papers relating to the new course of Environmental and Earth Resources Engineering, 1992 (KMIN/E);
papers relating to Tywarnhale mine, Cornwall, 1908-1971, including correspondence concerning its purchase, 1908-1912; general administration, 1909-1939; with the Duchy of Cornwall, 1910-1922, 1950-1951; purchase of land, 1946-1965 (KMIN/M);
papers relating to the Petroleum Engineering Section, 1973-1978, including working party papers on proposed course; Chair of Petroleum Engineering, 1974-1975; course leaflets, 1975-1978 (KMIN/P);
papers relating to the Rock Mechanics Section, comprising MSc course details, [1968]; research reports, 1967, 1969, 1975 (KMIN/R);
report on the Royal School of Mines examination, 1924 (KMIN/S);
papers relating to the Mineral Technology Section, comprising brochures, establishment of the section, 1949-1950 (KMIN/T).

Papers of the Parkes family, 1634-1865. The main part of the collection consists of letters to Joseph Parkes. In addition, there are a few letters to his elder brother Josiah, to their father John, and to other members of the family. There are also a few miscellaneous papers. The Parkes family deeds are also part of the collection, consisting of family deeds, subsidiary title deeds, grants of mineral rights, deeds held as Trustees, and miscellaneous. The deeds are dated 1634-1800 and the correspondence is dated 1801-1865.