The worthy maker of guns approached the scene of carnage, accompanied by the inmates of his dwelling, with rueful countenances, illumined by tapers, when the cause of their disquietude was soon discovered. No apparition or sprite forsooth, but a full grown donkey of the Andalusian breed, lay weltering in gore, yet warm with partial life! By timely liberality the valorous Alonzo escaped detection, though the heroic deed is still remembered in merry Valencia, and often cited as an instance of glorious (?) chivalry.
GRADIVUS.
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SPIRIT OF DISCOVERY.
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IMPROVED SAFETY LAMP.
[Illustration]
Mr. Dillon has lately introduced to the notice of the scientific world, an improvement upon the Safety Lamp of Sir Humphry Davy, which appears to us of sufficient interest for illustration in our columns. As the Davy Lamp is too well known to need special description here, it will be merely necessary to allude to the principle of the invention, in order to point out Mr. Dillon’s improvement.
He maintains, in opposition to Sir Humphry Davy, that the Davy lamp acts by its heat and rarefaction, and not from Sir H. Davy’s theory, that flame is cooled by a wire-gauze covering. He shows, by a simple experiment, that the Davy lamp is not safe in a current of hydrogen or carburetted hydrogen gas, and that many lives may have been lost from the confidence of miners in its perfect safety. A current of hydrogen or carburetted hydrogen gas steadily directed