Show ADDS TO butterflies BEAUTY new yorker get results by extreme of heat and cold dr otto of new york Is producing some remarkable results b exposing butterflies to heat and cold in this way be bas artificially prodoc ed arctic and tropical forms of those insects and yet more surprising he has evolved in the same fashion an dent forms which may have lived tens of thousands of years ago and butterflies of the future so to say which may exist thousands of years hence though it sounds like a fairy tale it Is all quite true of course says a writer in the saturday evening post it Is in the chrysalis stage that the insects are subjected to this treat ment they are put into an icebox or into a hot box and then being ta ken out are permitted to undergo their final transformation whereupon of course they appear as full fledged butterflies by comparing tl cm with ordinary butterflies of the same cles it Is easy to see what the effect of the cold or the heat has been in variably as dr has found their colors are made much more sub dued by the cold and much more vivid nd brilliant by the heat by exposing local new york butterflies to the treat ment dr seifert has produced varle ties such as would be appropriate to manitoba or mexico as indicated by their subdued or by their brilliant col oring varieties that is to say which have no actual existence in nature |