OFFICIAL REPORT OF THE ASTRONOMER ROYAL.
"Sydney Obsebvatoby, February 26th, 1880. Several of the rate curves respond to the change in the barometer in a way that showß the isochronal properties of their balance springs are not quite perfect. Looking down the curves it becomes at onoe evident that Watch No. 5, which is JSo. 670,068, second grade, of the American Waltham Watch Company, is remarkably free from these defeots, and presents the best rate of all the watches tested. " Amongst the cheaper watohes tested, No. 6,which is No. 1,221,336 of the American Waltham Watoh Company, is worthy of notice; it is a watch of'the sixth grade, yet its perfermance has been better than that of many very expensive and otherwise first-class watches tested. Such a watch speaks volumes in favour of the system under which it was made, and is the best comment upon the accuraoy of the machines that produced it. H. C. Russell, 8.A., F.R.A.S., Astronomer-Royal, Sydney Observatory."— [Advt], ■
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Bibliographic details
New Zealand Herald, Volume XXI, Issue 7002, 26 April 1884, Page 1 (Supplement)
Word Count
162OFFICIAL REPORT OF THE ASTRONOMER ROYAL. New Zealand Herald, Volume XXI, Issue 7002, 26 April 1884, Page 1 (Supplement)
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