96 RIVERS IN SUMMER driftwood upon it to make a fire for supper. The mosquitoes, which we had hoped to avoid, came out in clouds from either bank, defying the mid- stream breeze. They plagued the hands that built the fire and swarmed round the head that was bent over the grub-box. When we at last sat down on the pebbles to eat, they swam in the tea, sat in layers upon the bacon and accompanied each piece of food into our mouths. We kept our gloves on, smeared fly-oil over our necks and faces and sat cursing in the smoke from the fire. Within half an hour the kettle, frying-pan and grub-box were back in the boat, and we were setting off again up-stream. The swaying tree- trunk bowed monotonously to us as we passed it, and the jam-pile below us creaked and soughed until the sudden roar of the motor drowned its lamentations. Our fire smouldered dully upon the deserted gravel-bar. The air was still and heavy. Frequently we had to seize the oars and pull into shore when the propeller struck a piece of wood or caught on the shallow bottom of the channel. Ten minutes would elapse on such occasions while the broken pin was replaced, and during this time the mosquitoes closed in eagerly upon us. Some- times we took the wrong channel, and were obliged to turn back and start afresh. Sometimes