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  2. MINES AND MINING.

    REGULATIONS for Mining for Gold in force in all the mining districts of the colony of New South Wales, made by the Mining Board under the provisions of the Mining Act 1874. ...

    Article : 1,799 words
  3. Improved Rudder.

    THE ordinary balance rudder, as is well known, is pivoted near its middle, and can, with a large rudder area, be easily put over to large angles. But it has certain disadvantages which have prevented its being adopted in any ...

    Article : 523 words
  4. SCIENCE—INVENTION— CONSTRUCTION.

    M. A. Nicole states that he has succeeded in producing telescopic reflecting mirrors cheaply and easily by the electroplating process. He takes the mould of a concave surface, made of a mixture which is ...

    Article : 2,213 words
  5. Improved Adjustable Clamp.

    THIS is one of those simple and yet very effective little devices which is sure to meet with a ready application from all having occasion for its use. The shape, clearly shown in the annexed engraving, is such as to insure ... [ILLUSTRATED]

    Article : 318 words
  6. Living Barometers.

    THAT is a curious instinct which a large number of animals possess, of predicting the weather and signifying the approaching change by peculiar movements or sounds. Some of their actions in this respect appear ...

    Article : 642 words
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