"But what shall I do when the ink is gone?" thought Crusoe. "I must find some way of keeping track of the time."
He set up a wooden cross, upon which he cut with a knife the date of his landing. Each day he cut another notch in the wood.
Every seventh notch was twice as long as those for the days between, and the notch for every first day of the month was twice as long again. Thus Crusoe kept a calendar, or weekly, monthly, and yearly reckoning of time.
By and by, he found that there were many goats on the island, and many pigeons which he could obtain for food.
After a time, Crusoe decided that his cave was too small.
As he was sure that there were no wild beasts on the island, he began to make his cave larger, and he finally built a tunnel through the rock outside his fence.
Then he began to hang his belongings upon the sides of the cave, and to arrange them in order. He even built shelves on the walls, and made a door for the entrance. He also made a table and some chairs.
During all this time, Robinson Crusoe climbed the hill daily.
He looked over the lonely waters hoping--always hoping--to see the sail of a ship. At last he gave up all hope of ever leaving the island. Several years passed by. The clothing that Crusoe had saved from the ship was worn out. He made himself clothes from the skins of the goats on the island. He made also an umbrella of goat skins, to shield him from the hot rays of the sun.
Though the food which he had taken from the ship had long since been eaten, he raised plenty of barley from seed which he had found in a little bag on the ship. The goats and pigeons on the island supplied him with meat.