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Show PUZZLES IN COLORS Why Purplo Plants Aro Poisonous, nnd Some Other Problems. From Pearson's Weekly. In summer weather ladles, and men, too, when powlble. wear vhlte. Why? To keep ecol, of courre, you will say. If thli bo so. why, then, nro almost all the crvativcs that llvf In arctic regions clothed In while? The- usual reply Is that the white color col-or Is for protective purposes ln order. In fact, to make them Invisible to their enemies In tho midst of tho wnites of snow But. consider again In this rcasonablo? From whom does tho )hilr bear need to hide? Ho has no enemltn to fear. And as for tho birds which ussumo a white plumage when they mlgrato north, surely thoy also hnvo far fewer foes In tho folar regions than when further South. Again. If white bo a cool color, this Is nurcl) another reason against tho Inhabitants ct tho eoldewt legions turning white at the approach ot winter It Is easy to strengthen this argument. Visit the tropics nnd you will laid hardly any whlto nnlmuls or birds. In tho ery hottest regions, of thi globo not only In man, as a rule, black, but the birds and boasts aro cither very dark or olio extremely brilliant bril-liant In color. Of tropical birds tho commonest com-monest colors run as follows- Brown, druk gret n and dark bhso, emerald crcen. rods and v.illOWS. Spraklng of birds aenln, why Is It that land birds aro mostly dark hucd, while so many roa hlrdi an- wliltn? Here Is ni other color puzzle. Almost all &ong blruit are somber In hue. while the brightly bright-ly colored specks euch as tho Jays, the parrots par-rots and birds of paradise, have naturally harsh voices. Tho colors of llowcrs nnd leaves offer numbers num-bers of Interesting problems. No ono qult knows why the prevailing lint of early spring Powers is either white or yellow. Yellow. Indeed, In-deed, holds Its own to some extent all through tuo Miminer. but the typical color of summer blooms W pink, while ns tho uutumn ndvanoes richer crimsons and all the rich, glowing hues ci' dahlias and chrysanthemums nro jeon. Horticulturists havo picdueed popples of pretty pret-ty ncarlj owry shade under tho sun. and with muny Hewers they seem able to niter tho colon: col-on: nlmont as they please. Yot thu blue roe. th bl.tok tulip and tho gwn carnation seem r.s far oft nt" aver tlwy were hi oplte of constant con-stant efforts to nrrlvo nt them. Nearly thn-e centuries ugo Dutch goidenura Imuglned them-mlvfs them-mlvfs on the veiRo of Inventing a black tulip. Tho colors of tho blcMom of fruit trvM are united to white, pink, bright scarlet and purple pur-ple Thp roscn i o ouo l;ncwn. Nor Is It char v.hy nenrly all plants villi r-arple blosjonis h.i- itoUoncus piepwUc.x The deadly lilglit-&hadi lilglit-&hadi Is an Instnnco which will bo famlltnr o ell country i adorn. Jt-uuuU- to bn a4d aaa-jnany-jUll lmaglno that Intensity of color depends upon Inten- i IH sit V of light Tho brilliancy of a tropical land- cnpo s.-crn3 In some measuro to twvar thlc out H I ut any amount of arguments may be dedure-J IH npalnst It. Ituhlc, opals and other qxqulsllo IH terns are dug from tho depth of tho enrth. IH The rays of the sun have never touched thorn Tho puln or some fruits Is more richly tuitwl than iho outer fruit, whllo the crlm.on blood i'i animals :s hidden from the light. Whir could bo more rich and mnsnlllcfnt In color than tho wings of many moths. Tet these or IH all night flylni; crcatun.s. H |