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“John Lilley & Son
having not taken enough notice of the falling barometer
It was my aim to portray that most fascinating of instruments – the barograph – using illustrations as examples of the many different types still available
John Dollond’s invention of the achromatic lens (although bitterly disputed) led to his award of the Copley Medal by The Royal Society in 1758 and following this success
Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh RB Bate “John Lilley & SonFor sale, a cased George IV altazimuth theodolite by Alexander Adie of Edinburgh. This rare example is comprised of a horizontal five inch divided circle which is coarse adjusted by hand and then finely adjusted by means of a knurled brass knob attached to top. The centre contains an expertly engraved and silvered compass with a small brass cam to the side of the case, to hold or release the movement. Two sides of the outer edge of the base are also
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