Close to the grassy, channel-divided marsh, flying in a sort of spiral to cover every bit of ground, the amphibian was moving.Seconds to go!Took off part of the cover, cut the rubber, put them in, wrapped in oiled silk to make a tight pack, then used some rubber patching cement I keep for torn rubber coats or boot patching, and with a hot electric iron I vulcanized the rubber together and put back the covering.