Mr. Choate and his wife begged them so hard to remain over another day at least that Mr. Giddings assented.  That afternoon they went for a long automobile ride along improved roads, both sides of which were lined with palms in places, luxuriant tropical grasses in others, and towering forests covered with creeping vines.  They stopped the car a number of times to visit great orange groves, and the boys had their first taste of the luscious fruit just as it ripened on the trees.