Note 45 — XVI KINDS OF THINKING

Clifford’s “Essays,” page 87. Thus the movements of Sirius led astronomers (Peters and Auwers) to infer the existence of a satellite, which was subsequently discovered by Alvan Clark & Son through the eighteen-inch glass which they were completing for the Chicago Observatory. Similarly, Professor Wright, of Oberlin, carefully studied the Trenton deposits and their relations to the terrace and gravel deposits to the westward, and predicted that similar paleolithic implements would be found in Ohio. Two years afterwards Dr. Mertz found, eight feet below the surface, a true paleolith of black flint at Madisonville, in the Little Miami Valley. Other instances of scientific prediction will occur to the reader.