They were interrupted by Mrs. Allen: "My dear Catherine," said
she, "do take this pin out of my sleeve; I am afraid it has torn
a hole already; I shall be quite sorry if it has, for this is a
favourite gown, though it cost but nine shillings a yard."

"That is exactly what I should have guessed it, madam," said Mr.
Tilney, looking at the muslin.

"Do you understand muslins, sir?"

"Particularly well; I always buy my own cravats, and am allowed to
be an excellent judge; and my sister has often trusted me in the
choice of a gown. I bought one for her the other day, and it was
pronounced to be a prodigious bargain by every lady who saw it. I
gave but five shillings a yard for it, and a true Indian muslin."

Mrs. Allen was quite struck by his genius. "Men commonly take
so little notice of those things," said she; "I can never get Mr.
Allen to know one of my gowns from another. You must be a great
comfort to your sister, sir."

"I hope I am, madam."

"And pray, sir, what do you think of Miss Morland's gown?"

"It is very pretty, madam," said he, gravely examining it; "but I
do not think it will wash well; I am afraid it will fray."

"How can you," said Catherine, laughing, "be so -- " She had almost
said "strange."