This archive consists of photocopies of the portion of the ledger of William Lauder, concerning the Arts Building project, 1838-1841. An index to the entire ledger is included.

These scattered items of correspondence deal with Porter's resignation from the Cincinnati, Hamilton and Dayton Railroad Co. (1892), stock purchases (1907) and other financial matters (1927-1928).

The administrative records constitute the bulk of the collection; they include annual reports, and financial statements of John Millen & Co. and related firms, 1962-1972; quarter-monthly reports, 1956-1969; memoranda, 1961-1969; files concerning clients, products, sales, and inventory, 1960-1969; executive meetings, 1960; staff lists, 1955-1970; budgets, 1965; files on Exide & Oil Co. Sales, 1964-1968; file on Modern Sales Ltd., 1943-1970 and business correspondence, 1943-1972. Legal records consist of leases, 1963-1964; employee contract between S.B. Millen and John Millen & Son Ltd., 1968; correspondence, memoranda, and court cases, ca 1930-1936. Also included are reports and typescripts on the principles of management and sales, 1948, 1960-1969, as well as some newspaper clippings.

The project files which occupy most of the archives of J.T. Donald and Co. fall into two series: ordinary business and special assignments. Both series contain the firms report's, and correspondence. Special assignments were largely connected with wartime armaments production. A few files concern work for the Imperial Munitions Board in World War I, but most consist of reports for the Chemical and Explosives Branch of the Department of Munitions and Supply, 1939-1948. Ordinary projects involve consultation for food, pulp and paper, petroleum, and chemical manufacturies, as well as for some government departments, 1888-1940. Outgoing correspondence from 1881 to 1909 is contained in letterbooks. A file of legal documents, 1924-1946, refer to claims against the company, agreements, and partnerships. Also included are an undated notebook on chemical analysis, and scrapbooks and files of newsclippings of professional interest (e.g. reports of explosions caused by oil and gas) covering the period 1916-1958. There are also reports on mining and energy sources prepared by Donald alone and also in partnership with J.H. Ross for various private and government bodies.

These records consist of a ledger, 1877-1884, of an unidentified grist mill in the Eastern Townships.

The company's records contain administrative, financial and publicity material. The administrative series comprises the minutes of the directors from 1929 to 1955 and of the executive committee from 1949 to 1956. An engagement book records contracts between the company and its employees, 1902-1906. Henry Morgan's business correspondence covers the period 1847-1850, and includes a few personal letters to his brother James. Financial records cover both internal operations and stock transactions. The former are documented by an account book, 1845-1848; ledgers, 1870-1889; and diaries, 1884, 1936; the latter by lists of stock holders, 1954-1960; and records of transfers of Morgan's common stock, 1954-1961. Also included are files of invoices, receipts and cheques, 1846-1852. Publicity materials largely centre around anniversaries. Scrapbooks of newspaper clippings, other printed materials and photographs cover the years 1936-1945, culminating in the company's centennial, for which a typescript history was prepared.

Two letters to Rexford from S.P. Robins, Secretary and Superintendent for the Protestant School Commissioners of Montreal, discuss the affairs of the McGill Normal School, 1883.

The fonds consists of two letters from A.E. Walker to J.W. Dawson.

The Hortense Douglas Cantlie fonds is comprised mainly of medical illustrations and drawings (1924-1935) including her illustrations as a student at John Hopkins University, as well as two portfolios of about 37 charcoal sketches completed, while she studied art in Montreal and New York. Other material consists of three medical illustrations file books (one with many photographs of illustrations) dated from 1926 to 1952 with illustrations also by other artists, reprints of articles with Hortense Douglas Cantlie illustrations (1924-1934), one medical illustration signed Ruth Foster, a sketch book with a preliminary drawing of Brain Children (1950's), a photo of a stained glass window designed for the Royal Victoria Hospital (1927-1928) and reproductions of prints by Max Brödel. There are reprints of an article written by Hortense Douglas Cantlie, The Reproduction of Pathological Specimens by the Use of the Wax Moulage (1929), two book illustrations in colour, one by Hortense Douglas Cantlie and another by J.M.T. Finney, a case of drafting instruments used by Hortense Douglas Cantlie, photographs of her illustrations (1926-1928) for a book by Wilder Penfield, as well as other negatives, and prints of medical illustrations.

The fonds contains Macfarlane's papers, concentrating on his geological research and his professional work in mining. They comprise: geological and chemical notes made in Germany and England, 1855; geological notes on New Brunswick, 1855-1856, the copper mines of Upper Telemarken, Norway, 1861, Quebec, 1861-1862, and Eldorado Canyon, Nevada, 1887; laboratory journals and records of results, 1851-1856, 1859-1882, 1884-1889; and letterbooks, notebooks and memoranda on geology, 1863-1899.