Mr.Mann understood it, but he could hardly have expressed it better.
The boy learned the alphabet quickly, and began to demand constant attention in his eagerness to learn.

Mr.Mann found that he was giving more than the allotted time to him.

To meet the case, he appointed from time to time members of the school "monitors," as he called them, to sit beside him and help him.
One day he asked Gretchen to do this work.

The boy was delighted to be instructed by the mistress of the violin, and she was as pleased with the honor of such monitorial duties to the son of a chief.

But an unexpected episode grew out of all this mutual good-will and helpful kindness.
Benjamin was so grateful to Gretchen for the pains that she took with his studies that he wished to repay her.