He made a noble stand at Harlem Heights for three weeks, where he had several encounters with the foe. In one of these, two of his most brilliant officers were killed, Colonel Knowlton and Major Leith. Knowlton's last words were, "Did we drive the enemy in?" Speaking of Colonel Knowlton reminds us of an incident.

Soon after the retreat from Brooklyn, Washington said to Knowlton:

"It is important for me to know the strength of the enemy on Long Island. Can you name a trusty man who will find out?"

"I can," answered Knowlton. "If he will consent, he is just the man for such service."

"Send him to me immediately."

Within a short time Nathan Hale of Connecticut, one of the bravest and most promising young officers in the army, presented himself to the general.

"Can you ascertain for me the number and strength of the British on Long Island?" asked Washington.

"I think I can," replied Hale; "I am willing to try."

"You understand that it will cost your life if the enemy capture you. It is serious business."

"I understand. I understood that when I entered the army," was young Hale's cool and heroic reply.