H. le Pâtre, Architect, 47, Grande Rue de la Chapelle, St. Denis, Paris.
Casimir Pétiaux, Paris.
H. S. Ridley, Architect, 31, Vincent-square, Westminster.
J. B. Roberts, Architect, Sleaford, Lincolnshire.
A. Rosengarten, Architect, Hamburg.
H. Rouse, Esq.
W. Russell, 3, Frederick-street, Hampstead-road.
H. Savage, 22, Beaumont-street, Marylebone.
J. P. Seddon, Esq., Gray's-inn-road.
A. Slater, Architect, Elève de Mons. Cluysenaar.