An American Robinson Crusoe by Daniel Defoe

Now that Robinson had fire, he determined to try to make bread. He had seen the servants at home make bread many times, but he had not observed closely and knew next to nothing about the way bread is made. He knew he must in some way grind the corn into flour, but how could he do this? He had no mill nor any tools with which to crush the corn.

He first tried to find a stone large and hard enough out of which he might hollow a vessel or kind of mortar. He thought he could put the corn into this mortar and grind it by means of another stone or pestle. It was with great difficulty that he could get a stone of suitable size and form. After several days' trial he at last got one cut out from some layers of rock near the shore. He made a hollow place in it. Then he took a smaller oblong shaped rock for his pestle.