The name of the first explains itself; the name of the second refers to a small tin pipe or tube inserted in the hole, and twisted so that the mouth of it comes close to my ear while I am standing at my post of observation.

Thus, while I am looking at Mr.Jay through my peep-hole, I can hear every word that may be spoken in his room through my pipe-hole.
Perfect candor--a virtue which I have possessed from my childhood--compels me to acknowledge, before I go any further, that the ingenious notion of adding a pipe-hole to my proposed peep-hole originated with Mrs.Yatman.This lady--a most intelligent and accomplished person, simple, and yet distinguished in her manners, has entered into all my little plans with an enthusiasm and intelligence which I cannot too highly praise.

Mr.Yatman is so cast down by his loss that he is quite incapable of affording me any assistance.

Mrs.Yatman, who is evidently most tenderly attached to him, feels her husband's sad condition of mind even more acutely than she feels the loss of the money, and is mainly stimulated to exertion by her desire to assist in raising him from the miserable state of prostration into which he has now fallen.
"The money, Mr.Sharpin," she said to me yesterday evening, with tears in her eyes, "the money may be regained by rigid economy and strict attention to business.

It is my husband's wretched state of mind that makes me so anxious for the discovery of the thief.