One of two, 25 years old. Plain cylinder, 24ft. long, 4ft. diameter, 5/16 inch plates, 30 lbs. pressure. Gave way at a ring seam where much corroded near the back end, which was blown to the rear, the front end being thrown considerably forwards, and the shell was torn into many fragments which damaged the engine house, and so injured the other boiler that it also was rent into pieces and thrown some distance away. One safety valve was made to serve for the two boilers, and the connecting valve being shut there was no escape from this boiler, so that the bursting pressure soon accumulated. A similar boiler attached to the same engine exploded in April, 1870, and is mentioned as No. 15 in the "records" of that year. _No. 8. S. Wales. January 15th. none injured._ Plain cylinder, 5 years old, 35ft. 6in. long, 4ft. 10in. diameter, 1/2 inch plates, 55 lbs. pressure. Some plates over the fire became red hot from the accumulation of scale some inches thick upon them and gave way, and the reaction of the issuing contents sent the boiler some distance and did much damage. _No. 9. Manchester. January 16th. 1 injured._ Plain cylinder, flat ends, very old, 8ft. 4in. long, 3ft. diameter, 3/8 inch plates, 50 lbs. pressure. The front plate was blown out, and the boiler was thrown backwards for some distance. The boiler was corroded until too weak to bear the ordinary pressure. _No. 10. Sunderland. January 17th. 1 killed, 1 injured._ Marine. The steam expansion joint was placed between two opposite curves in the pipe, and one end drew out when first under pressure. _No. 11. Leslie. January 26th. 2 killed._ Cornish, 10ft. long, 4ft. diameter. Tube 2ft. 4in. diameter, plates 5/16 inch, 40 lbs. pressure. Gave way at bottom where it rested on the brickwork, the plates being completely eaten away by external corrosion. _No. 12. Gateshead. (Fig. 5.) January 27th. none injured._ [Illustration: _Fig. 5._] Domestic, 3ft. high, 2ft. wide, and 1ft. 1in. deep, 3/8 inch plates. The circulating pipes being frozen, the pressure accumulated, and rent the boiler open doing great damage. _No. 13. Bradford. (Fig. 6.) February 1st. 1 killed._ [Illustration: _Fig. 6._] Plain cylinder, 5 years old, flat ends, 7ft. 5in. long, 3ft. 4in. diameter, 3/8 inch plates, 45 lbs. pressure. The safety valve was loaded to 70 lbs., and this pressure was too great for the insufficient stay to the flat end, which was blown out, the boiler being thrown backwards. _No. 14. Dover. February 5th. 1 killed._ Marine, 70 lbs. pressure. The boiler was not moved from its place, and the damage appeared to have been slight, but no particulars have been obtained. _No. 15. Newcastle. (Fig. 7.) Feb. 10th. none injured._ [Illustration: _Fig. 7._]