THE MONTH: SCIENCE AND ARTS.
Reading edition
It has long been understood that the vaults of the British Museum contained many treasures for which no space could be found in those parts of the building accessible to the public. But the removal of the Natural History Collection to its new home at South Kensington has placed a series of spacious galleries at the disposal of the authorities, and these are now being filled with the hitherto hidden antiquities. Among the most interesting of these is a collection of tablets bearing inscriptions relating to Babylonian history. One is a Babylonian Calendar, from which it would appear that in Babylon the superstition existed of certain days in the year being either lucky or unlucky. This book of fate had to be consulted before performing various acts of domestic life. The same superstition is common to the Chinese, and seems akin to the astrological fictions prevalent in Europe a few centuries back.
Mr Petrie, whose excavations at San (Zoan) have been adverted to more than once in these pages, has now returned to England, and has recently given an account of his work at a meeting of the subscribers to the Egypt Exploration Fund. He has examined more than twenty sites of ancient cities and remains, and speaks of certain ground so thickly strewn with early Greek pottery ‘that the potsherds crackled under the feet as one walked over it.’ He pointed out that the main object with regard to San—a city built seven years before Hebron—was to gain knowledge of the unknown period of the Shepherd kings. But the work will occupy several years, for the district to be explored covers some square miles, and the remains are in many cases lying beneath eighty feet of earth. The Exploration Fund shows a balance of two thousand pounds, a circumstance partly due to the liberality of our American cousins, who are greatly interested in the work.
It is proposed to found at Athens a British School of Archæology, the aim of which will be to promote the study of Greek art and architecture, the study of inscriptions, the exploration of ancient sites, and to promote generally researches into Hellenic life and literature. His Royal Highness the Prince of Wales is President of the General Committee, which includes a large number of distinguished representatives of our universities and schools. Sufficient money has already been subscribed to start the enterprise, but more will be required for its maintenance. Subscriptions may be sent to Mr Walter Leaf, Old Change, London, or to Professor Jebb, at the University, Glasgow.
The French Minister of Agriculture some time ago commissioned a Professor of the Collège de France to experiment upon the best method of destroying the winter eggs of the Phylloxera, it having been ascertained that that line of attack was the most efficient in dealing with that terrible scourge of the vineyard. After several trials, a mixture of oil, naphtha, quicklime, and water has been tested on a large scale with the most successful results. It was of course easy enough to hit upon a chemical compound which would kill the eggs, but not so easy to find one which would not destroy the vine at the same time. The remedy is not only efficient, but cheap.
For some years, Dr Jaeger, of Germany, has been preaching a new hygienic doctrine, which has quickly gained disciples in the Fatherland and in other countries as well. Under the title of Sanitary Clothing, this new creed teaches that our dress requires a far more radical change than is indicated in the philosophy of so-called dress-reformers. Here is the pith of the matter. Man being an animal, should follow the dictates of nature by wearing only clothing made from wool and similar animal products. Cotton, linen, &c., are harmful in collecting the emanations from the skin, whilst animal textures assist in their evaporation. At the same time, animal clothing is warmest in winter, and coolest in summer, and by its adoption we might count upon the same immunity from disease as is seen in well-cared-for domestic animals. By night as well as by day we must shun contact with vegetable fibres. Sheets must give place to wool and camel-hair coverings. It is obvious that, besides revolutionising the Englishman’s innate regard for ‘clean linen,’ the general adoption of these new tenets would cause a revolution in trade, and would therefore at once court opposition; but for all this, the doctrine seems to have a considerable amount of common-sense about it.
A very pleasant and interesting ceremony was witnessed on Scarborough sands the other day, where a large collection of donkeys and ponies were assembled in review order. A few gentlemen have for the past two years subscribed for prizes to be offered at the end of each season to those drivers who can show their beasts in good condition and bearing the signs of kind treatment. This was the second distribution of the kind. There are many seaside places and other spots of popular resort where this good example might be followed with much advantage.
Lord Brabazon utters a useful note of warning when he points out, what has long been patent to many observers, that there is a deterioration in physique of the inhabitants of the more crowded portions of our cities. Want of food, exercise, and fresh air are the causes of this decline. He points out that in this year’s drill competition of School Board scholars it was clearly noticeable that those children from the poorest and most crowded districts were of shorter stature than the others. As a partial remedy for this lamentable state of things, Lord Brabazon advocates more variety in the system of education, and begs the authorities to remember that the body should be cared for as well as the brain. He pleads also that cookery, needlework, and the knowledge of a few simple rules for maintaining the body in health, will be of more value to a girl than a smattering of French, and that a boy will make a better citizen for having been trained to use his hands as well as his head in honest labour.
It is stated that a Wild Birds’ Protection Act is much needed in several parts of our Indian possessions. The birds have been hunted down for the sake of their bright plumage, until in some districts certain species are almost exterminated. The frightened agriculturists are now calling out for protection for their feathered friends, for insects of various kinds are increasing to an alarming extent, and are playing sad havoc with the crops.
According to the Building News, another curious use has been found for paper. At Indianapolis, a skating rink has been constructed of this ubiquitous material. Straw-boards are first of all pasted together, and are subjected to hydraulic pressure, and these when sawn into flooring-boards are laid so that their edges are uppermost. After being rubbed with glass paper, a surface is obtained so smooth and hard, and at the same time exhibiting such adhesive properties, that it is well adapted for the modern roller-skates. It is also stated that in Sweden old decaying moss has been manufactured into a kind of cardboard which can be moulded in various ways for the purposes of house decoration. It is said to be as hard as wood, and will take an excellent polish.
When we read the account of some fatal gas explosion, we are always prepared to find the oft repeated tale of the foolish one who goes to look for the leak with a lighted candle. A recent explosion of this kind in Paris has led to the appointment of a Commission to determine the best manner of searching for gas-escapes. It has been now decided that an electric incandescent light fed by an accumulator—or secondary battery—shall be rendered obligatory for such operations, and suitable apparatus has been selected and approved. It now remains to be seen where the lamps are to be kept, how they are to be always charged ready for use, and whether the foolhardy folk who court explosion with a naked candle or match will ever trouble themselves at all about the provision made for their protection.
Japan has the unenviable distinction of being the one spot on this globe where earthquakes are most frequent, and therefore it may be assumed that the Seismological Society of Japan has plenty of work to do. In the last issue of the ‘Transactions’ of this useful body of workers, there is a good paper by Professor Milne on Earth Tremors. The study of these slight movements of our great mother is called microseismology, and a number of exceedingly ingenious instruments have been contrived for identifying and self-recording them. From the fact that earthquakes are generally preceded by great activity in the way of tremors, it is hoped that reliable means may be found of forecasting those terrible occurrences. Professor Milne supposes earth tremors to be ‘slight vibratory motions produced in the soil by the bending and crackling of rocks, caused by their rise upon the relief of atmospheric pressure.’ Another investigator thinks that they may be the result of an increased escape of vapour from molten material beneath the crust of the earth consequent upon a relief of external pressure. In other words, these premonitory symptoms are developed when the barometer is low.
Messrs Manlove and Company, engineers at Manchester, Leeds, &c., in calling our attention to a paragraph which appeared some months back in this Journal descriptive of a street-refuse furnace or ‘destructor,’ point out that that title was given to an apparatus of their invention some years ago, which is now in successful operation in various parts of the kingdom. Owing to the word ‘destructor’ not having been protected by copyright, it has been applied by other inventors to more recent contrivances.
A New Jersey capitalist has lately planted a vast area in Florida with cocoa-palms, and he expects in a few years to rival the most extensive groves of these trees in other parts. The plantation covers one thousand acres, and each acre numbers one hundred trees. They will not yield any return for the first six years; but at the end of that time a profit of ten per cent. on a valuation of two million dollars is looked for, the original cost of planting being only forty thousand dollars. The trees, we learn, will flourish only within a certain distance of the sea-coast, and each full-grown tree produces annually sixty nuts. We presume that the estimated profits take into consideration the processes of oil-extraction and fibre-dressing, which necessarily follow in the wake of cocoa-nut cultivation.
The International Health Exhibition has been even more financially successful than its predecessor ‘The Fisheries,’ for the total number of persons who passed its turnstiles is more than four millions, a number equal to the population of London itself. The Exhibition of Inventions which is to open next year has met with some unexpected but not unnatural opposition from some of our great manufacturers. These complain that competition with foreign countries is so keen just now that it will be a national mistake to exhibit for the benefit of others, machinery and processes which have deservedly earned for Britain a proud pre-eminence in various manufactured products. They point out that a patent is very little protection in such a case, because of the ease with which, in other countries at least, it can be infringed, and because of the difficulty and expense of tracing the delinquents. It is probable that for this reason many of our manufacturers will stand aloof, or will only exhibit such things as comprise no trade secrets.
The dwellers in a certain part of suburban London have hitherto been in the happy possession of artesian wells on their premises, from which they could draw a never-failing supply of good water. They feared not the calls of the water-rate collector, and looked with indifference at the disputes with the Water Companies going on around them. But suddenly they have been rudely awakened from their pleasant dream of security, for their wells have run dry. An enterprising Water Company has sunk a deeper well than any of the others; and as water will insist on finding the lowest level, the smaller fountains have been merged into the big one.
No one likes to pay exorbitantly, especially for such a necessary as water, but the system of artesian wells is hardly suitable to a crowded city. In London itself, many pumps have been closed because of the dangerous contamination of the subterranean water by sewage and proximity to graveyards, &c. As a case in point, the city of New York, instead of drawing its water-supply from a hundred miles’ distance—as London does from the hills of Gloucestershire—has to seek it underground. Lately, the cholera scare has frightened people into a sense of insecurity; and inquiry shows that leakage of sewers has rendered the New York water unsafe, and it has been condemned by the city Board of Health. This is of course hard upon those who have sunk wells at great expense; but we have all to learn the lesson that the individual must occasionally suffer for the public weal.
A clever imitation of amber, which it is difficult to distinguish from the genuine fossil gum, is made from a mixture of copal, camphor, turpentine, and other compounds. It exhibits attraction and repulsion on being rubbed, like real amber (electron), which because of the same properties has given its name to the science of electricity. It is now being largely manufactured into ornaments and mouthpieces for pipes. It will not bear the same amount of heat that genuine amber will withstand, and it softens in ether. These two tests are sufficient to distinguish it from the genuine article.
The great ship-canal between St Petersburg and the small fortified town of Cronstadt, which up to this time has been the actual port of Peter the Great’s city for all vessels drawing more than nine feet of water, has at last been opened, the work of construction having occupied about six years. The canal is nearly twenty miles long, it has an average width of about two hundred feet, and is twenty-two feet in depth. Apart from its importance commercially both to Russia and the traders of other countries, who before were subject to the cost of transhipment of goods going to St Petersburg, the canal will have a strategical value. Ships of war could now retreat up the canal if Cronstadt were attacked, and could, if required, emerge from the security of the waterway fully equipped and ready for action.
That small creature called the weevil, whose depredations were always understood to be confined to grain and biscuits, has lately developed a taste for tobacco. In America, smokers have found to their disgust that both cigarettes and cigars are riddled through and through by this pest, the creature confining his attention to the choicest brands. This discovery has had a most prejudicial effect upon the cigarette trade in New York and Philadelphia. It is said that in some factories the weevil is swarming from cellar to garret.
The chairman of the Western Railway Company of France has lately volunteered a statement respecting the behaviour of the Westinghouse brake, which has been in use on that line for rather more than four years. In this statement we find a list of accidents which have been avoided by the use of the brake, and these accidents are classified under different heads, such as Collisions, Obstacles on the Line, Rolling-stock not removed in time, and so forth. Upwards of forty disasters have been clearly avoided by the prompt use of the brake. On the other hand, the brake itself will sometimes get out of order and refuse to act at the critical moment. How many accidents, we wonder, have already occurred from this cause! We may mention in this connection, that a meeting of the friends of the killed and injured in the Peniston disaster has been held, and that it has been resolved that a test action should be brought against the Railway Company concerned, on the ground that to send out a train with an insufficient brake, after the Board of Trade have for seven years laid down certain conditions, is a wrongful act. The necessary money has been raised without difficulty.
The recent exhibition of the Photographic Society was a very interesting one, the pictures shown, a large proportion of which were by amateur photographers, indicating a very high average of excellence. The modern gelatine dry-plate system, with its ease of working and its cleanliness, has attracted a number of amateurs, who, a few years back, under the old condition of things would never have dreamt of handling a camera. Indeed, aspirants to photographic fame have become so numerous of late, that a special journal, The Amateur Photographer, has been started in their interests, and bids fair to attain a wide circulation.
The vexed question as to how long a gelatine plate can be kept between the moment of exposure and its after-development, has been partially answered in a satisfactory manner by a certain picture in the Photographic Exhibition. It was taken in July 1880, and not developed till four years afterwards. No one would guess, from looking at it, that the plate which received the light impression had been kept so long before that impression was made visible by development.
The Times correspondent at the Philadelphia Exhibition gives an interesting account of the electric lighting system in that city. The Brush Company there supply arc-lights to the streets and the shops. The charge amounts to as much as fifty pounds per light per annum; but the people are content to pay this for a brighter light than gas will afford. There are no fewer than fourteen towns in the States which are lighted in this manner; and the writer of the account thinks that the English public and the English manufacturers have perhaps been rather hasty in condemning the light on insufficient grounds. We are disposed to think that the light has had a very fair trial here. Many of our railway stations and public thoroughfares have been illuminated by electricity, and many of them have discarded it. In a word, it does not pay. With improved appliances, which are sure to appear, we may nevertheless still regard it as the light of the future.
It may interest many of our readers to know, since the ambulance classes which have been established in most of our large towns have drawn attention to the subject, that a small case or chest, containing the requisites for ready treatment of injuries, may be had for a moderate sum. This case, first introduced at the Sunderland Infirmary Bazaar by the inventor, Mr R. H. Mushens of that town, is intended for use in shipbuilding yards and large factories where accidents are likely to occur. As in many instances the life of an injured man depends on prompt and ready treatment, and as a considerable time may elapse before the appearance of a doctor, the advantage of such a handy means of assistance to employers of labour will be at once apparent. The case is twenty-one inches long, nine broad, and seven deep, and is furnished with a brass handle for carrying it about from place to place. It contains a complete set of splints; roller and Esmarch bandages for finger, hand, arm, head, and broken ribs; tourniquet for arresting bleeding; strapping-plaster; sponge, scissors, Carron oil, &c., with printed hints regarding the rendering of assistance to, and the removal of the injured. The use of such simple appliances does not do away with the necessity of the presence of a doctor, but it may save the life of the injured person, and simplify matters very much for the doctor by the time he has reached the sufferer.