Civil Engineeering, etc. 9i GROUP XVIII. Civil Engineering, Public Works, and. Architecture. Building Materials ; Processes and Apparates for Quarrying, Brickmaking ; Iron Girder Work; Preparation and Preservation of Wood; Artificial Stone, Terra-cotta Work, &c.; Materials and Appliances for Foundations (Pile-drivers, Screw-pües, Cofferdams, Caissons, Pneumatic and Diving Apparatus). Contrivances and Tools for Earth-works (Excavators, Dredging Machines, Apparatus for Raising, Carrying, and Transporting Earth and Materials). Materials and Apparatus used for Roads and Railways (Road Rollers; Railway Super- stmcture, Switches, Crossings, Turn-tables, Traversing-tables, Inclined Planes, Lifts; Pneumatic and other Modes of Propelling; Water Stations and their Apparatus, Railway Station Buildings of all kinds, and Systems of Railway Signals). Hydraulic Engineering Works, excluding Sea Works (River Works, Canal Works, Dikes, Locks, Dams, &c.) Models and Plans of Viaducts, Bridges, and Aqueducts, &c. Plans, Models, and Drawings of Public Buildings, Dwelling-houses, Barracks, Penitentiaries, Prisons, and Hospitals, Schools and Theatres, Labourer’s Cottages ; Apparatus for Lifting and Moving Heavy Weights in Buildings, as Lifts, &c. ; Plans and Models of Cheap Dwelling-houses ; Tools and Im plements of Artisan Builders. Apparatus and Inventions for Health, Comfort, and Convenience in Buildings (for Lighting, Water Supply, Drainage, Waterclosets, Lightning Con- duetors, &c.) Agricultural Engineering; Plans for Culture, Fencing, Draining; Farm Buildings ; Buildings for Cattle Breeding ; Stores, Stables, Manure Tanks, &c. Indus trial Buildings ; Spinning Mills, Weaving Mills, Grinding Mills ; Distilleries, Breweries, Sugar Manufactories ; Warehouses, Saw-mills, and Docks, &c. BICKFORD, SMITH & COM PANY, Tuckingmill, Cornwall. — Patent Safety Fuses for blasting in mines, quarries, &c. (680) SIEBE & GORMAN, 5, Denmark Street, Soho, London.—Diving Apparatus, from which two Divers may work at different depths from the same Air-Pump. Used by the English Admiralty. (681) HEINKE & DAVIS, 2, Brabant Court, Philpot Lane, London. — Improved Diving Apparatus complete ; Electric Lamp for sub-marine uses. (682) AVELING & PORTER, Rochester, and 72, Camion Street, London.—Steam Road Roller. (484) SAXBY & FARMER, Cantcrbury Road, Kilburn, London.—Railway Junction Model; Interlocking Railway Points and- Signals ; Facing Points and Switches; Level Crossing Gates ; and other railway security apparatus. (683) BAINES, William, Railway Plant Works, Birmingham.—Model of Railway Locking Switches and Signal Apparatus. (700) BLAKEBOROUGH, Joseph, Brighouse, Yorkshire.—Waterworks Appli ances, Hydrants, Fire-extinguishing Appa ratus, Gun Metal Steam Fittings, Cocks, Gauges, Valves, Steam-whistles, &c. (684) REDMAN, John B., F.R.G.S., Member of the Institution of Civil Engineers, 25, Great George Street, Westminster.—Model of Royal Terrace Pier, at Milton-on-Thames, erected by means of Cast-iron Cylinders, 1843-5—the pioneer of this dass of marine construction ; principal dimensions in feet— length 250, breadth 30 ; the cast-iron girders are 50 and 51 ft. long, and 3 ft. deep, and weigh 8 tons ; cylinder foundation piers 6 ft. in diameter; their average depth below low water mark at Spring tide, 12 ft., rise of tide 20 ft.; height of structure from base of foundations to vane, 80 ft.; the cylinder foundations are all carried through the alluvial sands and gravels down to the solid chalk; the cylinders are filled solidly with brickwork and concrete in cement, the base stones being held down by central wrought iron through bolts. Drawings of Cylinders G 2 /