I forgot and went as far as the bridge, but she forgot all the way to the clam field." Jed rubbed his chin.
"The which field ?" he drawled.
"The clam field.

The place where Mrs.Smalley's fish man unplants the clams she makes the chowder of.

He does it with a sort of hoe thing and puts them in a pail.

He was doing it yesterday; I saw him." Jed's eyes twinkled at the word "unplants," but another thought occurred to him.
"You wasn't out on those clam flats alone, was you ?" he asked, addressing Barbara.
She nodded.

"Petunia and I went all alone," she said.