Show scientific miscellany an electric battery ivsich gives a current only when exposed to tho the light has been devised by jy mons the intensity ofilio current moreover varies with the tile intensity of the light it is reported that mr has succeeded in la dispensing with the vacuum in incandescent electric lamps b by us using ing crystalline silicon in place of Y carbon abo n the th silicon I c ca can it bo be fused into bars which may be heated to whiteness in the tile air without undergoing any change cl iange by vaporizing vapor izing two quarts quarta of tobacco juice over a slow fire baron gardener at pari mons boi zard destroys the troublesome insects that may bo be contained in the hothouse in which the operation is per formed iio ile considers tho remedy infallible and says gays it rarely injures the ten kenderest derest plants dr caudele haa bas recently proven the practicability of photographing landscapes from railway trains running at as high I it a rate as forty miles achour an hour 11 he uses for tho the purpose a modified camera which lie calls the g roar aab and with which it is said wonder nilly distinct views can be obtained after a little practice an ali exposure of only a hundredth of a second may be had A A system of pipes and tanks is being in pla placed ced at tho the entrance to aberdeen d c i for pouring oil on tho the water to calm it in stormy weather and thus militate the passage of v vessels itis it is confidently b believed cind bof that the scheme will prove entirely successful the only difficulty that hns lins thus far presented prescille a itself being that the pipes will ob dredging operations common fish oil procurable at low price is tho the material which will be used to the tile troubled ocean it probable that the electric light maybo may bo found very valuable in submarine work such as the examination of wrecks etc in an apparatus devised for this purpose by 31 dazin a powerful arc lamp is placed in a it cylinder linder closed by a glasa plato plate at the tile bottom and bya hy reflector at tin the top and a circular space at least one hundred feet in diameter is brilliantly illuminated lumina ted while the light readies reaches much farther the spectacle presented by ouch such submarine illumination is said to be remarkably fine among tho curious phenomena ic veiled by tho the sinking of wells I in in algeria is the existence of fishes crabs and freshwater fresh water mollusks at considerable depths in the subterranean waters as aakhas has been found in tho the arte artesian sign wells called mezer situated in tho the desert of aed aur quite near one of the brackish lakes so common in in the region these creatures crea turea were still alive when brought by the sounding lino line from fro a depth of feet and an one ono of the crabs was boiled b by its captor and proved to bo be of excellent taste the fishes were covered with sand mud nind but the tho shells of tho tile crabs were quite bright and glittering evidence tant they had inhabited pure water among the creatures crea turea which att attracted prof Ili eckels attention dt during ri in a recent tour in ceylon was the great black scorpion nearly afoot a foot long which ho he found to exist in such n ho lie collected half balfa a dozen specimens in the course of an hoar snakes were also noticed in great abundance slender blender green snakes cg hung from almost every bough and at night tho the great rat snake hunted rats and mico mice over the roofs of the huts although rat snakes are harmless prof Il Leckel considered it by no means a pleasant surprise surer ise i when one of them uvo five feet long suddenly drops through a hole bolo in tho the roof into ones room perhaps alighting on the bed it is well known that minute metallic particles are often collected in places remote from terrestrial sources of dust recent investigation shows that many of these particles must haye undergone fit fusion lion which evidently proves that the they havo have come from ti the roves smoke k of factories from volcanic fires or that they had a meteoric origin it is found by chemical analysis that in addition to iron they contain nickel and cobalt and neither of these two substances have ever been known to exist in similar particles from factory or from volcanic dust the evidence is 13 therefore on the side of the many who he have maintained that tho the so called meteoric dust really comes to us from space sir mr grant alien allen says that changes in color of flowers appear to follow a ro regular gular and definite order all flowers it would seem were in their earliest form yellow ellow t then ten some of them became white after that a few of them grew to bo be red or purple lo 10 and finall finally a comparatively scalf burp number acquired shades of lilac mauve violet or blue even the successive stages ofa of a single flower sometimes afford a us hints of a progressive law of color change from yellow to blue for example an Engli english sli forget me not oris is pale pile yellow when it opens gradually becomes faintly faintly pinkish and e ends by being blue ans and a bardana Tar dana noticed in south bout america by fritz 31 riller was y yellow on its first day orange range on the second a and purple on the third such changes cli angea are not rare among flowers and the color always varies in in the same general direction |