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  2. SCIENCE—INVENTION— CONSTRUCTION.

    IT would be a waste of ink to go into a discussion of the importance of well fitted pistons in steam engines and in the present state of engineering knowledge it is almost superfluous to remark that a well fitted ...

    Article : 463 words
  3. MINES AND MINING.

    THIS was about the most celebrated field in New South Wales for rich patches in small loaders, as much as 300 ounces of gold hoing found in a bucket of ore; still, though large blocks and quantities of ...

    Article : 2,467 words
  4. Water Purged of Air.

    WATER, in freezing, completely excludes the air from its crystalline architecture. ...

    Article : 300 words
  5. New Vertical Steam-Engine

    THE annexed illustration represents a now improved vertical high-pressure stationary steam-engine and boiler complete, as manufactured by Messrs. Ashby, Jeffery, and Luke, of the Rutland Terraco Iron Works, ... [ILLUSTRATED]

    Article : 408 words
  6. Lead Ores.

    IN treating ores of lead Mr. Charles Crockford, of Holywell, Flint, purposes to convert the galena into ...

    Article : 273 words
  7. How was Coal Formed.

    AT the Barnsley Naturalist's Society, Mr. Green, of the Geological Society, read a paper on "How Coal and its conjoint strata were formed. Mr. Green said, that the earth and its crust was much older than was generally ...

    Article : 997 words
  8. Ozone.

    WHEN electric sparks are passed through air a peculiar odour is produced, sometimes referred to the production of nitric acid, but which, since the researches of Schonb[?]in, in 1840, is now generally ascribed to an ...

    Article : 349 words
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