[Footnote E: In the year 1858, when reporting to the Insurance Offices upon the Warehouses in the Metropolitan Docks, Mr. Braidwood made the following suggestions which are applicable to all large buildings. That all the party-walls where the roofs do not rise above the wall, should be 3 feet 6 inches above such roof. That all the party-walls in the valleys of the roofs should be raised to the level of the highest ridge on either side, all openings in such walls being closed by wrought-iron doors on each side of the walls, at least a quarter of an inch thick in the panels, and such openings not to exceed 42 superficial feet in the clear. That all windows which look upon other windows, or loop-hole doors in other warehouses or compartments, within 100 feet, should be bricked up, or have wrought-iron shutters at least 3/16th of an inch thick in the panels. That all loop-hole doors similarly situated should be made entirely of wrought iron, frames included, or bricked up. That all shafts for lifts or other purposes, should be of brick, with wrought-iron doors where necessary to receive or deliver goods, and that all openings whatever for machinery should be included in such shaft. That every hatchway or opening in the floors for "shooting" goods from floor to floor should have a strong flap _hinged on_ to the floor, to be closed when not in use, especially at night. That there should be direct access to every room, of every compartment, of every warehouse, from a fire-proof staircase, by iron doors, and that all such staircases should enter from the open air, as well as from under any warehouse on the quay; in the latter case the doors must be of iron only. All the windows in the entresol and ground floors to be bricked up, or have iron shutters, and the doors and frames to be of iron. Wherever the warehouses face each other within 100 feet, the front parapet walls to be carried up to the level of the ridge of the roof. When it is stated in this report that the windows or loop-hole doors should be bricked up, it is not meant to exclude the use of thick glass, three or four pieces being built into each door or window space, not exceeding 6 inches in diameter or square, in the clear, and set in the mortar or cement at least 3/4 of an inch all round, the glass to be not less than 1-1/2 inches thick, flat on both sides, and so placed that no goods can be stored within 18 inches of the inner surface. There should be a tank on the top of each staircase, with a tap from it on each landing, with six fire buckets hung near it, and three small hand pumps in every staircase; the officers and workpeople seeing these every day would be certain to run to them in case of fire, and by having a constant supply of water on every floor small accidents might be extinguished at once, and the iron doors and roofs kept cool in case of one room taking fire.] FIRE EXTINCTION, INCLUDING FIRE BRIGADES, FIRE ENGINES, AND WATER SUPPLY.