Plain Cylindrical Boiler, with flat ends, 23ft. long, 5ft. 3in. diameter, 3/8 inch plates, 40 lbs. Both the flat ends were blown out, and the first ring of plates at the front end torn off. The cause of the explosion was the weakness of the flat ends without stays. _No. 44. Sunderland. August 7th. 1 killed, 3 injured._ Locomotive, 13ft. 4in. long, 3ft. 11in. diameter, with 140 2-in. tubes. The fire-box was 4ft. 5in. long, 3ft. 6in. broad, and 5ft. deep, and made of copper, 1/2 inch thick, 100 lbs. It was fitted with two 4-in. safety valves, and a steam gauge. The fire-box gave way about the middle of the left side, 2ft. 6in. below the water line, where corroded to 1/8 inch, and the issuing water and steam scalded those near. _No. 45. Runcorn. (Fig. 20.) August 22nd. 3 killed, 5 injured._ [Illustration: _Fig. 20._] Marine Multitubular, 5ft. 8in. long, and 6ft. 6in. diameter, with two internal tubular furnaces, which joined to an internal chamber of large size, and small tubes passed to a smoke box and chimney in the front over the fire doors. Both ends were flat. The flat back end was insufficiently stayed, and was blown completely out and torn into two pieces, the lower portion remaining in the vessel, and the upper part falling in the water, and the reaction of the issuing contents caused the boiler to be thrown on to the side of the quay. _No. 46. Hull. (Fig. 21.) August 25th. 1 injured._ [Illustration: _Fig. 21._] One Tube Cornish, 24ft. 3in. long, and 6ft. diameter, taper tube 3ft. 5in. diameter, for about 7ft. 6in. in length, and 2ft. 6in. diameter for the rest of the length, 33 lbs. The tube was much corroded, and the fireplace gave way on left side, and was so much torn, that the plates were forced out of the front. _No. 47. Morecombe. August 27th. 3 killed, 1 injured._ Marine, of the usual construction, and had been tested to 60 lbs. It gave way at the lower portion of the back, and the issuing steam and water scalded those near. A seam rent, 6ft. 6in. long, had not been detected by testing. _No. 48. Tuddenham. August 29th. 2 killed, 2 injured._ Agricultural. It burst during a temporary stoppage from accumulation of steam, causing undue pressure. _No. 49. Glasgow. August 31st. 3 killed, 6 injured._ Upright Boiler, 36ft. high, 5ft. 6in. diameter, 7/16 inch plates, 45 lbs. The bottom gave way from shortness of water, and the main bulk of the boiler was thrown straight up into the air to a great height, but descended again on its seating. _No. 50. Chatham. (Fig. 22.) September 7th. 2 killed, 30 injured._ [Illustration: _Fig. 22._] Two Tube Cornish, 22ft. long, 7ft. 6in. diameter, with tubes, 3ft. diameter, 7/16 inch plate, 60 lbs.