About the same time, Mr. James Sinclair introduced his chemical appliance, the firm now being the Harden Star, Lewis, & Sinclair Company. British fire-brigades would not touch the extinctors; but the Americans seized upon them rapidly, and manufactured them largely. At the present time, it is said that there is scarcely a fire-brigade in the States that does not use a chemical fire-engine in some shape or form. In Britain, the extinctor, either as the hand-grenade bottle or portable cylinder, which latter contains about eight gallons, is largely used by private persons, and is kept in many large establishments. Several provincial fire-brigades have also adopted the appliances in some form or other; but, as a rule, the chemical fire-engine has not been used by the public fire-brigades of the country. Perhaps one reason is, that it is regarded as more suitable for private use, and not as superior to the powerful steam-engines, hydrants, etc., operated so efficiently by trained firemen. It will be seen that the claims for chemical fire-engines are twofold in character: first, that they themselves supply propelling power for the fluid without pumps--a great consideration for private persons; and, secondly, that the liquid thrown has far greater fire-quenching powers than water. To the first of these claims, it is possible that fire-brigades, with their numerous hydrants and powerful steam-engines, would pay but little regard; while as to the second claim, only accomplished chemists and impartially-minded persons of wide and varied experience can form a fully-reliable opinion. At the time of the great Cripplegate fire in London, November, 1897, Americans were very keen in their criticism, much of which was unjust and inaccurate; but one of their points was the absence of chemical appliances in the London Brigade. It is, however, fairly open to argument whether the use of such apparatus would have mended matters. Even Americans have by no means abolished the steam fire-engine; and they have sometimes found that the fire has obtained so firm a hold, that the best they could do was to prevent the flames from spreading. When quantities of inflammable substances are crowded in high and comparatively frail buildings in narrow thoroughfares, you have all the elements of serious fires; and when once fairly started, it remains to be proved whether a gas-propelled and gas-laden stream would be more efficient than powerful and copious jets of water.