disposal of ordnance officers, by the advances in chemistry, heat, light, electricity, magnetism and the various engineering arts. The introduction of illuminating gas, the improvements in forging, casting and turning metals, had made possible the building of edifices, and the fabrication of better and cheaper utensils of every kind: improvements in the means and methods of spinning, knitting and weaving had bettered the materials that people wore upon their persons: improvements in rubber manufacture had made possible the use of waterproof garments; crops could be gathered more quickly and surely: safety from fire had been increased: methods of heating houses had been vastly improved: and the discovery of anæsthetics had relieved civilized man in great degree from his most distressing single enemy. As a result, the people of every civilized country lived under conditions of comfort far greater than had ever been known before in similar climates. The facts and conditions detailed above relate almost wholly to the material conditions of living, and show that, for most people, they had been enormously improved: though it is noteworthy that for the very poor, they had not improved in many cases, and had been altered for the worse in other cases. The unfavorable changes were mainly those produced by "factory life" which in 1850 must have been worse than country life for the same class of people. These cases were so greatly in the minority, however, as not to affect the main proposition that the advance in civilization from 1800 to 1850, caused by new inventions, had improved the material conditions of living for the great majority of the people affected by them. That it was desirable that these conditions should be improved, some people may be disposed to deny; pointing out that the improvement tended to develop "luxury, thou cursed of Heaven's decree." One of the effects of increasing material prosperity is undoubtedly a tendency toward luxury. But the number of people thus affected was so very small in the period from 1800 to 1850, and the degree of luxury attained then was so slight, that this question need hardly be discussed, at this point.