Read it through once

When I had been sitting there for five or ten minutes I saw Mahony’s grey suit approaching. He came up the hill, smiling, and clambered up beside me on the bridge. While we were waiting he brought out the catapult which bulged from his inner pocket and explained some improvements which he had made in it. I asked him why he had brought it and he told me he had brought it to have some gas with the birds. Mahony used slang freely, and spoke of Father Butler as Old Bunser. We waited on for a quarter of an hour more but still there was no sign of Leo Dillon. Mahony, at last, jumped down and said: