Roburite, the New Explosive--Practical tests of this substance,
with special application to coal mining. 9897

The Mechanical Reeling of Silk.--An advanced method of treating
silk cocoons, designed to dispense with the old hand winding of
the raw silk.--3 illustrations. 9898

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THE SPANISH TORPEDO BOAT AZOR.


[Illustration: THE SPANISH TORPEDO BOAT AZOR.]

The Azor was built by Yarrow & Co., London, is of the larger class,
having a displacement of 120 tons, and is one of the fastest boats
afloat. Her speed is 24½ miles per hour. She has two tubes for
launching torpedoes and three rapid firing Nordenfelt guns. She lately
arrived in Santander, Spain, after the very rapid passage of forty
hours from England.

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THE NEW SPANISH ARMORED CRUISER REINA REGENTE.