TESTIMONIALS.

145

watch, bank note, &c., placed lodged;” the protectingin E. Tann and Sons’ Patent me dium being a tempe-Eeliance Safe, prior to its being- , c m j i

, . . _ rature oi 212 degrees!

deposited in a testing fire, con-sisting of forty-eight cwt. of

coals, and several waggons of wood, to prove its fire-resistingqualities, were, after a severe test of three hours and a half, foundperfect as when lodged.

(Signed) “JAMES SMART,

“ Superintendent of Police.”[And twenty-eight more signatures.]

In order to perfectly understand the principle ofvaporization, and the latter and following testimo-nials, I think it best to copy T. Milner and Sons’own explanation from their pamphlet, pages 8, 9.

“ With reference to the superiority of this methodof maintaining low temperature in the heart of astrong fire, by vaporization, prolonged in chemicalnon-conductors,—in other words, by substitutingboiling for burning ,—it may be observed, that fromevery pint of fluid discharged from the materials ofthe safe or box, by heat, into the interior, nearlytwo thousand pints of steam are evolved and con-densed in the contents, rendering the whole massdamp and humid as a newspaper from the press.By this means, one thousand degrees of heat isneutralized, and rendered latent and harmless—one-half of which temperature would destroy thecontents of the best safe or box that can be puttogether of dry materials; whilst the papers aremade difficult of ignition, the whole process being

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