FOOTNOTE:
[10] There is a Patent Removable Covering now manufactured in New York which is said to be entirely formed of pure asbestos fibre, made in cylindrical sections of three-foot lengths of the exact size of the pipes to be covered. In this the asbestos fibres are so interlaced, that the sections, whilst possessing strength and flexibility, afford so large a number of air-cells as to give the covering the very highest non-conducting quality, whilst at the same time it cannot char or be in any way injured by the most intense heat from without or within. Fire Felt sectional coverings for boilers and large surfaces are made in convenient forms in sheets, &c. The same Company also manufacture what is called a Superator Jacket, both fire and waterproof, being in fact a flexible sheet of asbestos strengthened with wire netting, the asbestos being waterproofed by a special process, and provided with patent lacings, so that the jackets may be effectually kept in place, whilst being readily removable without cutting or loss of material.