Show WANT COLORED SILKS SPUN experimenters try their hand at breed ng variegated caterpillars some audacious experimenter havro been endeavoring to make tho silk worm spin colored silks primarily they were endeavoring ascertain the green color some natural silks 1 proa 1 in n y way by the leaves upon which the worms leed but the ane possibility of securing beautifully tinted raw silks several lots ol 01 caterpillars were tea from their birth upon leaves bated with a red dye they ato their livid meals without any snow of repugnance pug nance and soon began to take on a reddish tint throughout tho body when allowed to spin on freshly col lecter natural branches these worm produced a red tinted silk tho whole cocoon presenting a beautiful red col oration certain colors notably blue were not apparent in their effect and the worms did not seem to relish the blue leaves as well as the ones one ot the questions ahat naturally presents itself to the inquiring mindl Is whether selective breeding of euca artificially stained caterpillars would not result in a race in which the color atlon became permanent the tact la clearly established that the digestive tube has a marked influence on the silk As a french writer declare in green silks it Is the cholor phyl of the leaves that we observe and in yel low silks the pigment comes directly from the mulberry leaves with which it Is I |