Clothes protect the body, by allowing through their interstices such ventilation that the nervous system may not be sensible to extremes in changes of temperature. Dr. Pettenkofer states that equal surfaces of various materials are permeated by air as follows, flannel being taken as 100: Linen of medium fineness, 58; silk, 40; buckskin, 58; tanned leather, 1; chamois leather, 51.

Clothes, Renovating old, -Two ozs. common tobacco boiled in 1 gallon water is used by the Chatham-street dealers for renovating old clothes.The stuff is rubbed on with a stiff brush.

The goods are nicely cleaned, and, strange to add, no tobacco smell remains.