Two tube Cornish, 22ft. long, 7ft. 2in. diameter, tubes 2ft. 7in. diameter, pressure 15 lbs. Rent along bottom, and shell blown away, leaving tubes and ends nearly uninjured. The cause of explosion was, that the bottom was corroded to a knife edge all along the mid-feather wall. _No. 48. Shields. (Fig. 32.) December 31st. 2 killed, 1 injured._ [Illustration: _Fig. 32._] Plain Cylinder, 30ft. long, 4ft. 6in. diameter, plates 3/8 inch, pressure 29 lbs. Rent over fire near where a new plate had lately been put in. Front part of shell opened out and rent, and back end blew away in one piece. The cause of explosion was deterioration from 20 years' wear, and bad management. BOILER EXPLOSIONS IN 1868. _No. 1. Newcastle. (Fig. 1.) January 13th. none injured._ [Illustration: _Fig. 1._] One of three. Plain Cylinder, 27ft. long, 5ft. diameter, 3/8 inch plates, 35 lbs. pressure. The boiler was much torn up, and all the fragments thrown to the front of their original position. The cause of the explosion was that the boiler was very old and much deteriorated, so that it was unable to bear the ordinary pressure. The longitudinal arrangement of the plates, and the entrance of the feed directly on the bottom, no doubt contributed to the weakness. _No. 2. Glasgow. January 27th. 1 killed, 5 injured._ One of four. Kier or steam chamber, and not used for generating steam. It was 8ft. 6in. high, 6ft. 6in. diameter, 7/16 inch plates, 40 lbs. pressure. It was rent from top to bottom, owing to inferior iron and workmanship. _No. 3. Sheffield. (Fig. 2.) January 28th. 1 killed._ [Illustration: _Fig. 2._] One of four. One tube Cornish, 26ft. 4in. long, 6ft. 6in. diameter. Tube 3ft. 9in. diameter, 3/8 inch plates, 15 lbs. pressure. The dotted line shows outside shell of boiler. The tube collapsed from end to end while the steam was being raised, owing to the weakness of so large a tube without strengthening rings. _No. 4. London. (Fig. 3.) January 29th. 1 killed._ [Illustration: _Fig. 3._] One tube Cornish, 18ft. 3in. long, 4ft. 10in. diameter, 3/8 inch plates. Tube 3ft. diameter, 5/16 inch plates. In sketch the external shell is shown in outline to allow the tube to be seen. The tube collapsed owing to shortness of water, and rent open at one seam, allowing the contents to issue violently, although the boiler itself was not disturbed. _No. 5. Bolton. (Fig. 4.) January 31st. 1 injured._ [Illustration: _Fig. 4._] Locomotive, 90 lbs. Sketch shows interior view of fire-box with front removed. The left side of the copper fire-box burst inwards owing to the plate in line of fracture being corroded to less than 1/8 inch. _No. 6. Stoke. (Fig. 5.) February 6th. none injured._ [Illustration: _Fig. 5._]