grew colder. The water did not evapor­ate so fast. Perhaps more rain fell and the rivers that ran into the saucer grew larger. Anyway a new lake came where the old one had been-perhaps, like Topsy, it "just grow'd." It was not so large as Lake Bonneville and maybe from the beginning it was a little salty, for the old salt bed of Lake Bonneville might not have been all cov­ered over with earth. At present this lake is very salty and it is called Great Salt Lake. Great Salt Lake covers two thousand square miles, is seventy-five miles long, thirty-one miles wide and, in the deepest places, thirty feet deep. If its bottom were level, it would be fifteen feet deep everywhere. It is the most salty sea on earth ex­cept the Dead Sea. In every five pounds of the water is one pound of salts, of which thirteen ounces are common salt. You remember about the Nantucket 13