[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. INDEX. Asbestos, meaning of, 5 description, 7, 9 origin unknown, 12 only found in serpentine, 12 places where found, 13 first successful experiments with, 15 difference between Canadian and Italian, 16, 22 where used, 18 analysis, 20 Italian kinds, 21 sources of supply, 13, 24 marketable value, 28 first discovery of, 29 profitable nature of mining for, 31, 51 annual production, 52 aggregate output, 51 uses of, 55 Aldini, Chevalier, 15, 18, 66 Amiante, 8 Anecdotes, 5, 13, 54, 60 Anglo-Canadian Company, 27, 36 Antimony, 48 Ballooning, military, 58 Bastard asbestos, 27 Boiler coverings, 58, 70 Boot soles, lining for, 67 Boston Company's mine, 31 Breeches of big guns, 56 Broughton mines, 42 Building operations, use in, 61 Canadian mineral estates, typical, 48 Carriage of explosives, 60 China, strange use of asbestos in, 15 Cement, 70 Chrome iron, 28, 36, 51 Chrysotile, 8 Cloth and paper, 67 Clothing for firemen, 66 Coating ironclads, 57 Cobbing, 52 Cold storage, 67 Coleraine group of mines, 36 Coleraine mines of Dr. Reed, 41 Cost of extraction, 36, 40 Coste, Eugène, report of, 52 Crocidolite, 9, 10 Curtains in theatres, 62 Danville, mine at, 46 Deck cabins of steamships, 68 Discolouration, 27, 33, 37 removable, 38 Ells (Mr.), report of, 12, 31, 41, 50 Exeter Theatre, fire at, 63 Exhibition, American, 9 Extraction, cost of, 36, 40 Faults in veins, 47 Filters, 67, 73 Firemen's clothing, 16, 66 Fires at theatres, 62 Fireproof boxes, 58 curtains, 62 Frechette-Douville mine, 39 French-Canadian labour, 53 Genoa, floating chapel at, 68 Geology of Canada, 7, 9, 26, 48 Gold at South Ham, 49 Heath, Captain, experiments of, 61 Immature asbestos, 32 Impurity of rock, 27 Ink, asbestos, 68 Italian asbestos, 15 paper on, 19 Italy, experiments in, 15