|Totals || 719 | 327 | 1046 || 219 | 346 | 565 | +-----------------++--------+--------+------++--------+--------+------+ Table II (continued) +-----------------++------------------------+ |Cause of || Total Explosions up to | |explosion. || June 1870. | | || | | |+--------+--------+------+ | ||English.|Foreign.|Total | +=================++========+========+======+ |Worn out, || 181 | 58 | 239 | |corroded, or || | | | |burnt plates || | | | +-----------------++--------+--------+------+ |Undue pressure, || 157 | 11 | 168 | |overloaded || | | | |valves, || | | | |intentional or || | | | |from carelessness|| | | | +-----------------++--------+--------+------+ |Bad || 205 | 116 | 321 | |construction, || | | | |weak tubes, || | | | |defective || | | | |fittings or || | | | |stays, or want || | | | |of repair || | | | +-----------------++--------+--------+------+ |Shortness of || 134 | 10 | 144 | |water, formation || | | | |of scale or mud, || | | | |or external || | | | |flues set too || | | | |high || | | | +-----------------++--------+--------+------+ |Extraneous || 8 | 3 | 11 | |causes, || | | | |lightning, fire, || | | | |gas, &c. || | | | |-----------------++--------+--------+------+ |Too uncertain to || 253 | 475 | 728 | |be classified || | | | |=================++========+========+======+ |Totals || 938 | 673 | 1611 | +-----------------++--------+--------+------+ TABLE III. _Analysis of Steam Boiler Explosions in the United Kingdom_ _during the Four years ending 30th June, 1870,_ _showing the Causes of Explosion of Boilers of different descriptions._ A = Faults in construction or repair. B = Faults which should be detected by periodical examination. C = Faults which should be prevented by careful attendants. D = Causes extraneous or uncertain. E = number of Explosions. K = number of persons Killed. I = number of persons injured. CORNISH, LANCASHIRE, _or other Boilers with internal flues_.