A GREAT many boys mistake their calling, but all such are not fortunate enough to find out in as good season as did this one. It is said that Rufus Choate, the great lawyer, was once in New Hampshire making a plea, when a boy, the son of a farmer, resolved to leave the plow, and become a lawyer like Rufus Choate. He accordingly went to Boston, called on Mr. Choate, and said to him: "I heard you plead in our town, and I have a desire to become a lawyer like you. Will you teach me how?" "As well as I can," said the great lawyer. "Come and sit down." Taking down a copy of Blackstone, he said: "Read this until I come back, and I will see how you get on." The poor boy began. An hour passed. His back ached, his head ached, his legs ached. He knew not how to study. Every moment became a torture. He wanted air. Another hour passed, and Mr. Choate came and asked:— "Get on! Why, do you have to read such stuff as this?" "All there is on these shelves, and more," looking about the great library. "Well, it has taken me more than twenty-five years." "Well, that is about all I have gained as yet." "Then," said the boy, "I will go back to the ploughing. The work is not near as hard, and pays better."