Mons. Acollas, Architecte, 33, Rue Lafayette, à Paris. Messrs. Aickin and Capes, 1, Clarence-street, Islington. W. Albon, Esq., 32, Abingdon-street, Westminster. C. B. Allen, Architect, 9, Great College-street, Westminster. F. C. Anderson, Esq., 9, Holles-street, Cavendish-square. _Architekton_ (W. Bardwell, 4, Great Queen-street, Westminster). Henry Ashton, Esq., 50A, Lower Brooke-street. John S. Austin, Architect, Bedford. William Austin, Esq., High-street, East Dereham, Norfolk. C. Badger, Esq., Architect, 40, Rue Blanche, Paris. R. Baly, Esq., 14, Buckingham-street, Adelphi. Alfred Beaumont, Architect, 5, Warwick Chambers, Beak-street. Richard Bell, Architect, Pope's Head Chambers, Cornhill. W. Bell, Esq., Clift Cottage, Coronation-road, Bristol. Thomas Bellamy, Esq., 8, Charlotte-street, Bedford-square. Mons. Felix Belleflamme, Brussels. J. S. Benest, Esq., 21, Rutland-street, Hampstead-road. J. H. Bertram, M. Inst. C. E., Reading. John Black, Esq., 33, Ernest-street, Regent's Park. E. Blatchley, Esq., Jun., 362, Oxford-street. Mons. Alphonse Botrel, Architecte, 121, Rue Poissonnière, Paris. A. W. Boulnois, Esq., Bazaar, King-street, Baker-street. W. Boyle, Esq., 5, Little George-street, Westminster. R. Brandon, Architect, 11, Beaufort-buildings, Strand. R. Broad, Esq., Horseley Works, Tipton. B. Broadbridge, Architect, 35, Ladbroke-square, Notting-hill. F. Brown, Esq., Francis-street, Torrington-square. R. Brown, Esq., 41, Lord-street, Liverpool. J. B. Bunning, Esq., Guildhall. George A. Burn, Architect, George-place, Hammersmith. H. P. Burt, Esq., 238, Blackfriars-road. John G. Grace, Esq., 14, Wigmore-street. E. I. C., Alnwick. Mons. J. Cailloux, 25, Marché St. Honoré, Paris. A. F. Campbell, Esq., 104, Pall Mall, Reform Club. Henry Case, Esq., 19, Hanover Villas, Kensington Park. James Catt, Esq., Blackheath Park. Mons. J. Charpentier, Architecte, 15, Rue Larochefoucalt, Paris. J. Claringbull, Esq., 95, Herbert-street, New North-road. Mons. Henri van Cléemputte, Laon, France. Mons. J. P. Cluysenaar, Architecte, Bruxèlles. J. Colshurst, Esq., 36, Jermyn-street, St. James's. John Colson, Architect, Winchester. Mons. J. W. Conrad, Chief Engineer, La Haye, Holland. C. E. Coote, Esq., Clifton. W. R. Corson, Architect, 3, Albion-place, Leeds. H. Courtney, Esq., 39, Awylne-road, Canonbury-square, Islington. David Cowan, Esq., 9, Hungerford-street, Strand. Mons. Crémont, 10, Place des Vosges, Paris. W. Cruikshank, Esq., 24, Duke-street. Mons. E. Damas de Culture, 20, Rue Mazayran, Paris. G. J. Darley, Esq., C.E., 7, Kildare-street, Dublin. Mons. A. Delaage, 6, Place de l'Oratoire du Louvre, Paris. W. Dennis, Esq., Church-street, Hackney. Charles Downes, Esq., 29, Coleshill-street, Eaton-square. Francis Drake, Esq., 11, Calthorpe-street, Gray's-inn-road. Henry Duesbury, Architect, Kensington Gore. Mons.