MARVELOUS GIFT OF BIRDS. Homing Pigeons Able to Make Their Roosts In Pitchy Darkness. Although birds aro not placed near tho summit lino of evolution, their ability lo fly glv.es thorn advantage over nearly all tho mammalia. The( mysterious power of changing tholr polarity or weight In ordor to dive in water or fly has been often discussed and the almost Incredible velocity of their motion when migrating, migrat-ing, sonH-tlmes amounting to four miles n minute for vnst distances, has no paralhl among other nnlmals. A series of careful trials with carrier pigeons reported from Kcance shows i apparently without doubt their possession pos-session of a highly developed sense of direction. It was supposed that homing pigeons depended upon sight to find tholr way, but these experiments hnvo been conducted between Cereraes and Roatiu In the, darkness of, night. In twenty minutes tho first bird, dispatched dis-patched nt 10 p. m., reached Its roost, a distance of "seventeen miles being trnversed Half of tho numhor arrived ar-rived beforo midnight and tho remainder re-mainder followed In n few hours.