Publisher's Synopsis
He was in a Colquist gyro, just north of the spot where Lake Nicaragua drains its brown overflow into the San Juan, and was bound for Managua, seventy-five miles north and west across the great inland sea. Below him, quite audible above the muffled whir of his motor, sounded the intermittent clicking of his tripanoramic camera, adjusted delicately to his speed so that its pictures could be assembled into a beautiful relief map of the terrain over which he passed. That, in fact, was the sole purpose of his flight; he had left San Juan del Norte early that morning to traverse the route of the proposed Nicaragua Canal, flying for the Topographical branch of the U. S. Geological Survey. The United States, of course, had owned the rights to the route since early in the century-a safeguard against any other nation's aspirations to construct a competitor for the Panama Canal.
