Joseph Jopling, Esq., Felton Villa, Finchley-road. H. J. Kaye, Esq., 63, Sloane-street, Knightsbridge. G. P. Kennedy and R. Kennedy, Esqrs., Sussex Chambers, Duke-street, St. James's. J. T. Knowles, Esq., 1, Raymond-buildings, Gray's Inn. Herr Friedrich Krahe, Brunswick. Louis Kûhne, Brunswick. A Lady with great diffidence submits this plan. M. Laves, Architect to the King of Hanover, Hanover. Mons. A. G. Ledrut, Claremont. S. W. Leonard, Assistant-Curator Micrological Society, 11, Upper Stamford-street, Waterloo-road. W. B. Lewis, Esq., Rainbow-hill, Worcester. R. Lobb, Esq., 8, Goulden-terrace, Barnsbury-road, Islington. Locke Brothers, New Peckham. Henry Lockwood, F.S.A., and William Mawson, Architects, Bradford. Henry Lote, Esq., 51, Brompton-row. R. Lovely, Esq., C.E., 1, Victoria-terrace, Queen's-road, Nottingham. George Mackenzie, Esq., 3, Claremont-row, Barnsbury-road, Islington. Messrs. Magni and Thummeloup, 26, Boulevard du Temple, Paris. R. Mallet, Esq., Victoria Foundry, Dublin. Mansell and Elliott, Architects, Halkin-street West, Belgrave-square. R. M. Marchant, Esq., 18, Great George-street. P. J. Margary, Esq., Dawlish, Devonshire. W. P. Marshall, Esq., Temple-buildings, New-street, Birmingham. D. Mickle, Esq., 37, Queen-square, Bloomsbury. Joseph Mitchell, Architect, St. James's-street, Sheffield. J. Montheath, Esq., 10, Stanley-street, Paddington. James Moon, Architect, 1, Millman-street, Bedford-row. Captain W. S. Moorsom, 17½, Great George-street. G. Morgan, Architect, 6, Charles-street, Westminster. J. H. Muller, Gaes, Holland. Charles C. Nelson, Esq., 30, Hyde-park-gardens, London. Mons. C. Frédéric Nepveu, 13, Place d'Armes, Versailles. W. Nethersole, Esq., C.E., 73, Oakley-square, St. Pancras. I. W. Newberry, Esq., Hook Norton, Chipping Norton, Oxon. Francis B. Newman, Architect, 14, Heathcote-street, Mecklenburgh-sq. C. H. Newton, Esq., 92, Camden-road Villas, Regent's Park. Mons. Paliard, 23, Rue d'Enghein, Paris. E. Paraire, Architect, 16, Woodstock-street, Bond-street. Mons. Henri le Pâtre, 47, Grande Rue de la Chapelle, St. Denis, Paris. Thomas Peacock, Esq., High-street, Kensington. J. D. Pemberton, Esq., Royal Agricultural College, Cirencester. G. Perry, Architect, 42, Newington-place, Kennington. Mons. Casimir Pétiaux, Paris. William Radley, Chemical Engineer, Regent-street, Lambeth. W. Railton, Esq., 12, Regent-street. W. Rankin, Esq., Stirling. W. Reed, Esq., Cannon Cottage Hill, Southampton. Messrs. Reid and Butcher, Architects and Surveyors, 38, Red Lion-square, London. Stanley Reilly, Architect, 3, Upper Kennington-green, Kennington. George Banks Rennie, Esq., Whitehall-place. Harry Ralph Ricardo, Esq., Beaulieu Lodge, Norwood, Surrey. W. Riddle, Esq., East Temple Chambers, Whitefriars, Fleet-street. H. S. Ridley, Architect, 31, Vincent-square, Westminster. J. B.