Show CURIOSITIES IN COLOR COLO Blue Rays Are Hurtful to Animal and Vegetable Growth i Philadelphia Press Put a growing plant under red glass glassand l and it shoots up very tall and ly Green glass class causes a similar effect hut but not quite so strongly marked Blue glass glasson on the time other hand seems to dwarf dwart Vegetable Vegetable able growth A plant grown under blue glass is al allS lS smaller than its neighbor under transparent glass although althou h the condi condl conditions are arc otherwise similar A series of experiments in growing I plants under various colored glasses was conducted by bJ the well weli known astronomer Camille and the results as above reported by b him to the French Frencha academy a a d em Light and color arc are full of or odd puzzles many of which are arc stilt still a good deal of ora a mystery Dr Kiel Niel iel Finsen famous for his electric light lI ht invention for the cure of cancer made exhaustive experiments on the effects of lights of various colors on arious various forms of animal life One or two of these were very Yer interest interesting interestIng Interesting ing For instance he be placed a number of earth worms in a box covered hair halt with red half with blue glass In every eer case the worms were found to crowl crow away from under the blue glass and take shel shelter shelter shelter ter under the red where wheT they remained quite content contentA A chameleon lizard was then placed by bythe bythe bythe the experimenter in a small box so that half 1181 Its body was under blue and the theother theother theother other half under red glass class He noticed that at once the part under the blue rays I turned black while that part under red L light remained almost white It was evi evident evident dent that the tIme creature was seas using its pig pigment pigment ment cells to protect itself Itsel against the disagreeable effects of the blue light It is now universally acknowledged that the blue rays ras are arc of ot all the thc visible rays i which we receive from the sun the only ones that can produce injurious effects I upon animal or plant life It is these t blue rays that cause scarring in smallpox The skin In this disease becomes almost as sensitive a a photographic plate If It the tIme patient is kept in the dark no scar scarring scarring scarring ring results But a red light is equally harmless as darkness and less unpleasant to the patient Sunstroke as we call can it is produced not by light rays at all but t b oy y the chemical I rays of the sun Sunstroke may thus be termed a photographic effect and we w can therefore use color to fight it Treat the body bod as a I his dark plates Envelop It not in black as usually done but in orange An orange i colored shirt and a coat and hat lined I with orange fabric have actually been beer I tried by officers in India who had to tc I march durine durl 1 hot weather Men fen so at attired attired attired tired were certainly certain I rendered immune to tc I sunstroke Certain blind persons can tell the color colot colori of a flower by b laying it against their cheek Actual experiment shows that blossoms of certain colors are in reality warmer than those of other tints I A scientist who recently carried out a ii series of such suli experiments found that dark reds Teds and browns e the sensation of greatest warmth while lemon yellow ellov was the coldest color Pink is warmer than white but white curiously enough is warmer armer than violet blue or yellow w wA A rather odd fact about yellow ellow is that thata a yellow light has greater power of pen penetration penetration penetration in foggy fogg weather r than thana a pure white while one It has been proved that the tIre yellowish h light of oil or gas bras In a light lighthouse lighthouse house lantern can be s seen een further out at ats sea s a than can the pure white of an electric lamp lampIn In clear weather and by bJ daylight da light green reen I is visible at the greatest distance of or any an scarlet which is usually imagined to be bethe bethe I the most brilliant of colors Indeed blue and even eon dark grey are far f r more visible color much further or or instance at distance than is scarlet |