How does each one of the Whites react when the family first learns about the paw?

From the text:

His three listeners leaned forward eagerly. The visitor absent-mindedly put his empty glass to his lips and then set it down again. His host filled it for him.

"To look at," said the sergeant-major, fumbling in his pocket, "it's just an ordinary little paw, dried to a mummy."

He took something out of his pocket and proffered it. Mrs. White drewback with a grimace, but her son, taking it, examined it curiously.

"And what is there special about it?" inquired Mr. White as he took it from his son, and having examined it, placed it upon the table.