Then Grandfather gave the lines to Kit, and a little stick for a
whip, and told him to walk slowly along beside the dogs. He told
him to be sure not to let go of the lines.

Grandfather walked behind, carrying some milk cans.

Grandmother stood in the door to see them off; and, as they
started away, Kat took one hand off the cart long enough to wave
it to her. Then she held on again; for the bricks in the pavement
made the cart joggle a good deal.

"We must go first to Vrouw de Vet," Grandfather called out. "She
takes one quart of milk. Go slowly."

At first Kit went slowly. But pretty soon there was a great
rattling behind him; and Hans Hite, a boy he knew, drove right
past him with his dog cart! He drove fast; and, as he passed Kit,
he stuck out his tongue and called out,

"Milk for sale! Milk for sale!
A milk cart drawn by a pair of snails!"

Kit forgot all about going slowly.

"Get up!" he said to the dogs, and he touched them with his long
stick.

Peter and Paul "got up." They jumped forward and began to run!