"Mrs. Isa Wilson Porter, under control of an Oriental spirit, held her bared hands and arms in the flames of a large coal oil lamp. She also heated lamp chimneys and handled them as readily as she would in their normal condition, and made several gentlemen cringe and some ladies screech by slightly touching them with the hot glass. The test was made under supervision of a committee of doctors and well known physicians, who reported at the conclusion that previous to its commencement they examined the lady's hands and arms, and that they were in their natural condition, and that her pulse beat was seventy. While the test was in progress the pulse indicated forty. After its conclusion the pulse beat was sixty-five; the arms and hands were a little red, but unscorched, and the hair upon them not even singed. This incident seems weak in the description after witnessing the fact of tender flesh and blood held in such a flame for several minutes." MISCELLANEOUS INTELLIGENCE. ERRATUM.--In the April number, the view of the upper surface of the brain, by mistake of the printer, was turned upside down--see page 29. The engraving on page 31 must be referred to, to illustrate the description in this number. CO-OPERATION is making great progress. A colony similar to that at Topolobampo is to be established on 3,000 acres at Puget Sound. Manufacturers are beginning to adopt the principle of giving a share of profits to their employees, but space forbids details. Topolobampo has 400 busy colonists, and is not ready yet for any more. EMANCIPATION.--Brazil has about a million of slaves. Emancipation is proceeding slowly. It may be thirty years before slavery shall be entirely extinguished. INVENTORS.--A correspondent remarks very justly that "Inventors have rescued the race from primitive barbarism. They have transformed the primeval curse into a blessing. True saviors they, whose every gift has multiplied itself a thousand-fold by opening new fields of industry, and scattering luxuries even among the poorest. To the inventor, and not to the statesman, politician, or warrior, do we owe our present prosperity." IMPORTANT DISCOVERY.--"Tests were recently made at Louisville of a new and not expensive process for hardening and tempering steel, by which hardness and elasticity are carried forward in combination. A drill made of the new steel penetrated in forty minutes a steel safe-plate warranted to resist any burglar drill for twelve hours. A penknife tempered by the process cut the stem of a steel key readily, and with the same blade the inventor shaved the hairs on his arm. The inventor is a young blacksmith. He has also a new process for converting iron into steel."