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-. List of Vessels Sailed

South Dock I

Prince of Wales Dock. I

DlKTimu.

LOGICAL ENGLISH.

ENCOURAGING HIM

SCIENCE NOTES AND NETW8.

TkU CAUSE OF SLEEP.

"ELECTRIC STEEL" IN GERMANY.

MRASURING THE INFINITE

ITHE ORIGIN OF GUNPOWDML

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THE ORIGIN OF GUNPOWDML The Chinese have long been credited with thr tevention of gunpowder, but Professor E. O. etfei Lippmann, of Halle, hae collected evidea* to indicate that this is a mistake, and that tlII Arabians did not, as commonly stated, introdiMT gunpowder into Europe during the eighth ul ninth centuries. Profeaeor von Lippnaan be- Uevee thù- the manufacture of the first |H> powder was baaed upon the "Fire-book" m W^cua Gresells, which appeared in Coaetentfc nop/ about the middle of the thirteenth ess- twry. This was the source from whioh Roget Bacon, Albertus Magnus, and Thomas Aquiaaa derived their knowledge of gunpowder. The ftret see of gunpowder to drive projectiles is aaoribed to a monk, BerColo Schwars, whose disoovetf was made accidentally while preparing the aii tare for medicinal purposes.

FACTS ABOUT BUILDING STOME.