Referring to the epidemic of smallpox in London, a correspondent of the Times gives a valuable suggestion. He tells how an epidemic of the same dreaded disease was quickly stamped out in a South American village some years ago, and although our great metropolis bears but small resemblance to a village, the remedy in question might nevertheless be tried. Huge bonfires of old creosoted railway sleepers were made in the streets, and gas-tar was added occasionally to stimulate the flames. In the meantime, every house where a death or recovery occurred was lime-washed. With these precautions, which are manifestly applicable to other zymotic diseases, the visitation speedily vanished. Concerning this all-important subject we may have something further to say in a special paper.

Meanwhile, there is no kind of doubt that the spread of infectious disease is attributable in great measure to personal ignorance, commonly called carelessness, as well as to that entire indifference as to the welfare of others which is so common to human nature. Some time since, an advertisement appeared to the following effect: ‘Should this meet the eye of the lady who travelled (by a particular train) with her two boys, one of whom was evidently just recovering from an illness, she may be pleased to learn that three of the four young ladies who were in the carriage are very ill with the measles.’ This is surpassed by a statement contained in a recent letter in the Times. A lady, finding that her boys, on recovering from a severe attack of scarlatina, suffered much from dandruff (the scales which separate from the scalp, and which, in fever, are a prolific source of contagion), took the sufferers to a leading West End hairdresser’s, so that their heads could receive a thorough cleansing with the machine-brush!

We would in this connection draw attention to a novel system of providing for smallpox cases with the least amount of risk to others, which is established by the Metropolitan Asylums Board of London, and which will undergo in time further development. In addition to the five hospitals in different parts of London which have been opened whenever a fresh epidemic has broken out, there is a very elaborate ambulance system, by which a suitable carriage with a nurse and porter is despatched, as soon as notice is received, to the patient’s place of residence and removes the patient to the nearest hospital. This has been at work for some years; but in addition there are three ships moored on the Thames opposite Purfleet, two of which are hospital ships, the third being used as a residence for the staff, and containing offices, kitchens, workshops, &c. Some four miles inland there is a convalescent camp, consisting of tents for about one thousand patients, each heated and lighted by gas, and suitably fitted for the purpose in every way.

To convey patients to the ships, an ambulance steamer runs as often as required, being fitted up as a travelling hospital, with beds, &c., and having a medical and nursing staff. Patients are removed to the river-side either direct from their homes, or from the hospitals, usually on comfortable beds, and carried on board the steamer, and thence down the river. Another steamer brings the recovered cases back; and when landed, they are conveyed in special carriages to their homes, free from infection in person and clothing.

So far the problem of how to provide for an epidemic of smallpox in London is in a fair way of being solved, by a system which, though still in its earliest stage, is daily undergoing development and improvement. When yet another steamer is fitted out, there will be no difficulty in coping with a much larger epidemic than has visited London for many years, and at the same time treating patients with an amount of attention almost unknown till now.

The proposal to revive the art of lacemaking in Ireland, to which we adverted some months ago, has now received more definite form. A scheme has been framed under the auspices of many influential persons, the chief features of which are as follows: Original designs are to be purchased under the advice of the best authorities on the subject. These designs will be sent to the lacemaking centres for execution. The specimens will then be exhibited and offered for sale. The expenses to set this machinery at work will amount to about five hundred pounds, much of which is already subscribed. Full information as to the project can be obtained from Mr Alan Cole, of the South Kensington Museum.

Dr Von Pettenkofer has, according to the Lancet, been lately paying attention to the poisonous action of coal-gas on the human system, and a few notes of authenticated cases may be serviceable to those who pay little heed to an escape of gas so long as it does not in their opinion assume dangerous dimensions. The cases quoted all refer to escapes of gas into dwelling-houses after passing through a layer of earth, and we may note that such escapes are difficult of detection, for the earth robs the gas in great measure of its tell-tale odour. At Roveredo, three women were killed in their sleep by an escape from a broken pipe under the roadway thirty-five feet distant. At Cologne, three of one family were carried off by a similar escape at a distance of ninety-eight feet. At Breslau, a case is reported where the escape was no less than one hundred and fifteen feet away from its victim. It would seem that the dangerous constituent of coal-gas is carbonic oxide, which usually forms about eight per cent. of the vapour conveyed to our houses. Whether this noxious ingredient can, like other impurities, be eliminated in the process of purification at the gas-works, we do not know, but the question is certainly worth the attention of the authorities.

The Observatory on the summit of Ben Nevis, which our readers will remember was opened in October last, will be completed this summer. The observations already made confirm the anticipations as to the value of a high level station, and the completion of the structure will add to the efficiency of the work done, for hitherto the observers have been cramped for space. A shelter for tourists forms part of the scheme, and travellers will be able to obtain light refreshment there, and if they desire it, can telegraph from the highest point in Britain to their friends below. The cost of completion will absorb about eight hundred pounds; but this estimate does not include the heavy outlay for carriage of materials on horseback up the bridle-path already constructed. It has been suggested that visitors on horseback using this path should pay a toll of five shillings—a modest sum, when it is considered that the expenses of maintenance are much increased by the soil being loosened by the horse’s hoofs, especially when the ground is in a soft condition.

The small Chinese colony established at the International Health Exhibition is one of the principal attractions of the place. Visitors have now the opportunity of tasting various strange dishes which before they had only heard of by report. The much extolled bird-nest soup can be had here, together with shark-fins, beches de mer (sea-slugs), edibles made of different seaweeds, shredded cucumber peels mixed with vinegar, and various other delicacies, which, we trust, are nicer than they seem to be by mere description. We may note that the South Kensington executive have already arranged for an Exhibition to follow on the present one. It is to be called the Exhibition of Inventions, and will include all kinds of appliances, one entire division being devoted to musical instruments.

A long-felt want by paper-rulers and others has now been supplied by the new Patent Automatic Paper Feeding-machine. It has been invented by Mr William Archer, 204 Rose Street, Edinburgh—a paper-ruler who has spent his spare time during the last ten years in working it out, and who has now succeeded in patenting a Ruling-machine which is allowed to be the most accurate in use for feeding the paper in a continuous stream, or feeding to grippers at given intervals. It can be worked either by hand or steam-power, and it renders unnecessary the employment of boys or girls as paper-feeders. It can also be applied to hot rolling-machines; and it is expected that it will also be turned to use in connection with printing, &c.