"The cement," said Bob, pleased to see her interested in his work.
"Is it sticky?" she asked, as she put her fingers into it and stirred around in the mixture.
"Why, it's gritty, just like sand, Aunt Bettie," she said looking up.
"Of course," said Bob. "That's because it's made of sand and gravel and cement."
"May I see you make some?" she asked.
"Yes, in a few minutes," he replied; "just as soon as we empty the drum. You'd better stand back a little so that you won't get splashed when the concrete goes into the wheel-barrow," as Tony came forward.
"And this is Tony, Bob's assistant, girls," said their aunt.
"This is Ruth, Tony, and this is Edith."
"I-a please to meet da young-a ladies," said Tony, more embarrassed even than Bob had been, as he awkwardly placed the wheel-barrow under the drum.
As soon as the drum was empty, Bob measured out a charge of four parts gravel, two parts sand and one part cement, and then started the engine and dumped them into the drum, where he added sufficient water for the mixing.