I have no doubt I grinned like a Cheshire cat. I refrained from telling the abominable falsehood that I was sorry Mrs. Harding could not go with us, and an hour later the huge touring car rolled smoothly away from the Woodvale club house, its front seat occupied by a supremely happy gentleman of the name of Smith, and by his side a supremely pretty young lady who waved her hand to the elderly group on the veranda. I had been so absorbed in the unfolding of the incidents just narrated that I took no note of the weather or of anything else. For a month or more the weather has been so uniformly fine that we had come to accept the succession of warm but cloudless days as a matter of course. When I was a boy my father drilled into me a knowledge of the visible signs of impending changes in meteorological conditions. As I became older the study of the warnings displayed in the sky and in the indescribable variations in the feel of the air possessed a fascination for me. During the early years after the formation of the club the members jested me on account of my predilection for weather forecasting, but the uniform accuracy of these guesses commanded their surprise and subsequently won their respect. Chilvers and others sometimes call me "Old Prog. Smith," and I am more proud of that pleasantry than of some others. There was not a breath of air stirring. The atmosphere seemed stagnant, like a pool on which the sun has beat during rainless weeks. The dried tops of the swamp grass and reeds pointed motionless to the heat-quivering sky. The dust cast up by our car hung over the road like a ribbon of fog. The forest to our left shut off a view of the western sky, but I felt sure that the clouds of an approaching storm were already marshalled along its horizon. Then we shot out into a clearing and I took one swift look. From north to south was spanned the sweeping curve of a gray cloud with just a tinge of yellow blended into it. The ordinary observer would have seen in it no premonition of a storm. It was smooth, light in tone and restful to the eye as compared with the angry blue from out of which the sun blazed. The upper edges of this mass were unbroken save at one point near the zenith of its curve. From this there protruded the sharper edges of a "thunder-head," as if some titanic and unseen hand were lifting to the firmament a colossal head of cauliflower, its shaded portions beautifully toned with blue. This description may be homely, but it has the merit of accuracy. I said no word of my certainty of the oncoming tempest, but threw on full speed and dashed ahead at a rate which startled my fair companion. From the turn in the road just beyond the clearing we headed directly into the line of march of the storm. If it were slow-moving I calculated we would reach Oak Cliff before it broke, but I realised it would be close work.