Speech of William Alex. Mackinnon, Esq. M.P : in the House of Commons, on Tuesday, Feb. 14, 1837, on motion for leave to bring in a bill to amend the practice relating to letters patent for inventions, and for the better encouragement of the arts and manufactures : also, a copy of the bill, proposed and brought in by Mr. Mackinnon, read a first time, and ordered by the House of Commons to be printed, Feb. 15, 1837.