Those to whom the extent of preventible disease among our artizans—disease arising solely from their employments is unknown, I must refer to Mr. Thackrah’s book on that specific subject. Scientific ingenuity had long attempted to devise contrivances to relieve the men from some of these diseases; but the schemes were found too cumbrous, or otherwise impracticable. As so often happens, what _men_ were profoundly searching for, _nature_ had placed directly under their noses. Mr. Chadwick, to whom the public are indebted for much valuable information on questions connected with the public health, and Dr. Alison, of Glasgow, one of whom had seen the particles of iron settling on and staining the Beards of foreign smiths; and the other had noticed the dusty Beards of foreign masons when at work, were led to the conclusion, independently of each other, that the iron and stone dust were much better deposited on the Beard (whence they could be washed), than in the lungs, where they would be sure to cause disease. The lungs of a mason for instance are preserved in Edinburgh, which are one concrete mass of stone. These gentlemen published their convictions; and through the beneficial agency of the press, that information, aided by papers in the “Builder,” and in “Dickens’s Household Words,” soon found its way to our artizans, many of whom have tried the experiment, and borne testimony to its satisfactory results. At this juncture, let us also hope that the reiterated opinions of eminent Army Surgeons will at length be listened to, and the British Soldier be freed from the apoplectic leathern stock, and allowed to wear that protection which nature endowed him with. To the latter the most rigid economist cannot object, since it will add nothing to the estimates, while it will enable the soldier to offer, if not a bolder, at least a more formidable front, to the foe, and save him from many of the hazards of the march in which more die than on the field of battle! Though the subject has as yet received too little scientific attention, there can be no doubt that the hair generally has a further important function to perform in regulating the electricity which is so intimately connected with the condition of the nerves.