An atlas is a book that contains many maps.
Answer:
The detail, "And someone gave little Davy Hutchinson a few pebbles", contributes to the text because his mother was the one being stoned, but the person who gave him some pebbles was suggesting that he needed to start participating at a young age, just as everyone else did.
General Israel Putnam told his men "Dont fire until you see the whites of there eyes because some of them were too eagar to shoot and he wanted them to shoot at close range so they could hit the enemy. This also saved ammunition and helped them fight better.