The contents are as follows.
(i) Barclay and Perkins Brewery, estimates and valuations, 1805-1807, 1809, 1813-1816, with a note of all payments made by the brewery to John Ronnie and Sons, from 1794 to 1831 (folio 1);
(ii) Billinge's Silk Mill, Twyford, drawings and notes, 1799 (folio 25);
(iii) The Earl of Bridgewater's threshing machine at Home Farm, Ashridge, 1811-1813 (folio 31);
(iv) Cement mill at Loftus, Yorkshire, letters, 1811 (folio 58);
(v) Claverton Mill, plan of water levels, 1806 (folio 61);
(vi) Coulson and Company's mill, Limehouse, drawing and letters, 1810 (folio 63);
(vii) Fermoy Brewery, letters and drawing, 1811, 1814-1816 (folio 70);
(viii) Iver cottonmill, plan of lead, undated (folio 104);
(ix) Kirkstall, letters, 1811, 1817 (folio 106);
(x) Pymore flaxmill, letters, 1805-1806 (folio 110);
(xi) Rotherhithe, King's Mills, report and measurement, circa 1799 (folio 152);
(xii) Rundell's, Mill, Brick Lane, letters, 1812-1813 (folio 136);
(xiii) Whatman's paper mills, Maidstone, notes, 1787 (folio 146);
(xiv) Miscellaneous plans and calculations relating to mills, undated (folio 148);
(xv) Petitions, minutes, and other papers concerning the pay and conditions of journey men mill-rights, 1805, 1814 (folio 179).