Records of Associated Metropolitan Water Companies, comprising minutes and accounts of the Metropolitan Water Companies Meetings of Chairmen; minutes of sub committees including the Intercommunication Committee of Engineers of the Metropolitan Water Companies and the Committee for the Management of Works of Intercommunication; and correspondence.

Records of the Chelsea Waterworks Company, including papers relating to steam engines and other machinery; service records of workmen; sick pay regulations; deeds and other legal documents relating to company property; financial accounts; legal case records; Parliamentary papers; licences and historical notes.

Records of the Grand Junction Waterworks Company, including Court of Directors' papers; legal papers; parliamentary papers; investments records; plans; engine and coal accounts; contracts; staff records and property records.

Records of the Lambeth Waterworks Company relating to water supply and distribution, including engineer's report books; Inspector's report books; water supply applications and agreements; supply registers; water meters; constant supply registers; registers of fires; water rent registers; engine time books and statistics; house surveys and works in progress.

Purchase records of the London Bridge Waterworks Company comprising stock books, inventories and valuations.

Corporate records of the Staines Reservoir Joint Committee, including Committee meeting attendance books, proceedings books and minutes; legal papers relating to property, rating, water supply, stocks and shares, Parliamentary issues and contracts; correspondence and debenture stock volumes.

Financial records of the Staines Reservoir Joint Committee, including half-yearly accounts; journal; cash book; ledgers; register of wills and papers relating to payments to solicitors.

Financial records of the Southwark and Vauxhall Water Company, including accounts; ledgers; journals; cash books; revenue ledgers; Collector's accounts; bankers books; disbursement books; and building supply accounts.

Records of the Southwark and Vauxhall Water Company relating to water supply and distribution, including Engineers' report books; Supervisors' report books; service pipe agreements; meter agreements; trade supplies report books; constant supply orders; building supplies registers; meter supplies records; fire report books; engine and coal accounts; calculations and statistics; works diaries; mains supply map books and registers of complaints.

Purchase records of the Southwark and Vauxhall Water Company, including works stock book; volumes recording good returned to stores; and volumes recording coal use.

Staff records of the West Middlesex Waterworks Company, comprising correspondence relating to the appointment of JA Christie.

Prescription books [of William Martindale], 1885-1890. A number of the prescriptions are in fact recipes, including formulae for Sir Joseph Lister for cyanide of mercury and zinc in suspension (e.g. no. 2000), and another for '[Franz] Ziehl's stain for the tubercle bacillus' (no. 2600). Also included are reports on the analysis of drinking water at Winchelsea and elsewhere by John Attfield, Professor of Practical Chemistry at the Pharmaceutical Society, and by Dr Charles Meymott Tidy (nos. 2438-2439, 2892, 2979, 3035).

Property records of the Chelsea Waterworks Company, comprising land purchase registers and rent books.

General records of the Chelsea Waterworks Company, including correspondence relating to water charges; printed circulars and forms; newspaper cuttings; and reference material.

Corporate records of the East London Waterworks Company, including Court of Director's minute books; legal papers; Committee papers; title deeds; correspondence and letter books; papers relating to stocks, shares and debentures; Parliamentary papers; papers relating to royal commissions on water supply; Secretary's files; press cuttings; and plans.

Financial records of the Grand Junction Waterworks Company, including half-yearly accounts; ledgers; journals; cash books; liabilities; balance books; revenue ledgers; office rate books; Collectors' recoveries and meter collections.

Purchase records of the Grand Junction Waterworks Company, comprising stock books.

General records of the Grand Junction Waterworks Company, including examples of forms printed and distributed by the company; general index of drawings; papers relating to rate assessment appeals; valuation of tools and working plant; and papers relating to Parliamentary Acts and Royal Commissions.

Records of the London Bridge Waterworks Company relating to water supply and distribution, including water rental books; particluars of improvements to iron pipes; log book for steam engines and account of the working of the fire engine.

Records of the Metropolitan Water Board relating to the Croydon Corporation Waterworks, comprising plans from the Engineering Department including Croydon Corporation Waterworks; Waddon Pumping Station; Stroud Green Waterworks; Surrey Street Pumping Station and water mains, ponds, wells and rivers.

Minutes of the New River Company, including minutes, papers and reports of Weekly Meetings, of the General Courts of Governors, of the Surveys of the River Committee, of the Parliamentary Committee, of the Building Committee and of the River Lee Conservancy Board. Also copies of the charters of 1606 and 1737.

Correspondence files of the New River Company, including Secretary's letter books; letter books of staff members including engineers, supervisors and surveyors; general letter books and estate letter books.

Legal papers of the New River Company, including case papers; deed registers; correspondence; contracts; valuations; agreements; leases; papers relating to compensation and arbitration; petitions; and papers relating to land purchase.

Records of the New River Company relating to Parliamentary proceedings, including papers regarding relevant Select Committees and Bills; memoranda of proceedings; reports; and correspondence, statistics and reports relating to the Royal Commission on the Metropolitan Water Supply.

Records of the New River Company relating to stocks and shares, including registers; dividends receipt books; pamphlets; ledgers; indemnities; share transfers; certificates and reports.

Contracts of the New River Company including specifications; quotations; contracts; tenders; accepted contracts; accepted stores contracts and contracts for building offices.

Records of the New River Company which were separated from the main collection and used for exhibitions, including minutes; papers of the Surveyor; papers of the Engineer; negotiations for the supply of water; property papers; correspondence; reports; royal charters; agreements; legal papers; newspaper cuttings; papers relating to shares; contracts and specifications of works; and papers relating to staff.

Records of the Shadwell Waterworks Company, comprising financial material including rent books; cash books; receipt books; wage books; account books and some papers relating to works carried out.

Corporate records of the Southwark and Vauxhall Water Company, including Board meeting minute books; Committee meeting minute books; Secretary's reports; correspondence and letter books; solicitor's accounts; legal papers; records relating to stocks and shares; registers of probates; mortgage records and contracts records.

Staff records of the Southwark and Vauxhall Water Company, including wages books; expenses books; time books and applications, testimonials and correspondence.

General records of the Southwark and Vauxhall Water Company, including newscuttings books; papers relating to a legal case; papers relating to stocks and papers relating to works.

Records of the South London Waterworks Company (later the Southwark and Vauxhall Water Company) including papers relating to shares; minutes of Director's meetings; stock certificates; papers relating to works and papers relating to a lawsuit.

Records of the New River Company, comprising lease of a watercourse from main water pipe at back side of Saint Clement Danes to the private dwelling house of Thomas Dows, gentleman, 1697.

Financial records of Chelsea Waterworks Company, including annual account books; annual reports; accounts ledgers; journals; cash books; bills books; revenue ledgers; meter accounts; and order books.

Staff records of the Chelsea Waterworks Company, including register of employment; wages accounts and wages books.

Papers of the East London Waterworks Company relating to water supply and distribution, including Engineers' reports; Engineers' correspondence; volumes of accepted tenders; water supply agreements; Collectors' and Inspectors' letter books; indexes to the locations of meters; rating volumes; accounts; plans and diagrams.

Corporate records of the Grand Junction Waterworks Company, including Court of Directors minute books; Committee books; Court record books; General Assembly minute books; Directors' reports; correspondence and letter books; registers of shareholders; stock ledgers; mortgage records; and contracts records.

Staff records of the Grand Junction Waterworks Company, comprising staff wages books.

Corporate records of the Kent Waterworks Company, including Board of Directors' minute books; Committee minute books; Secretary's reports; correspondence and letter books; legal papers; records relating to shares, stocks and dividends; and contracts.

Staff records of the Kent Waterworks Company, including wages accounts sheets; papers relating to salaries and pensions book.

Records of the Kent Waterworks Company relating to water supply and distribution, including engineer's reports; water supply agreements; records of supplies laid on and cut off; meter books and water rent books.

General papers of the Kent Waterworks Company including press cuttings; papers relating to the Royal Commission on Water Supply; legal case papers and indexes.

Corporate records of the Lambeth Waterworks Company, including minute books of the Committee of Management and Directors; Committee minute books; agenda books; Director's reports; correspondence and letter books; legal papers; papers relating to stocks and shares; dividend books; registers of bonds; and contracts records.

Staff records of the Lambeth Waterworks Company, comprising establishment books.

Further records of the Lambeth Waterworks Company, including Board papers; Secretary's reports; correspondence; legal papers; Parliamentary papers; contract papers; engineer's reports; inspector's reports; foreman's reports; papers relating to water supply; property records and staff records.

Corporate records of the London Bridge Waterworks Company, including Committee of Managers minute books; General Meetings of the Proprietors minute books; shareholders register; stock ledgers and transfer books and dividend books.

Stock transfer records for the London Bridge Waterworks Company, comprising book of wills for deceased shareholders and elevation and plan of the great engine for the fifth arch of London Bridge.

Records of the Metropolitan Water Board, including minutes and related papers for the Board; the Appeal and Assessment Committee; the Works and Stores Committee; the Stores Account Sub-committee; the Special Co-ordinating Committee and the Special Arbitration Committee.

Records of the Metropolitan Water Board Survey Department, including terrier volumes; registered dockets; files on land acquired; deeds registers; and files regarding rates assessments.

Records of the Metropolitan Water Board Treasurers and Comptrollers Department, including detailed balance sheets; Water Fund general ledgers; general journals; cash accounts ledgers; superannuation volumes; capital ledgers; borrowing powers volumes; investments volumes; mortgage sinking fund volumes; stock volumes; audit files; files relating to stocks and shares; mortgage loans files; registers of bankruptcies and liquidations and salary records.