Peter Barlow 1828 Autograph Letter Signed "Peter Barlow," two pages, 7.25" x 9" (front and verso). Woolwich, May 21, 1828. Integral leaf addressed to: "Captain Beaufort RN / Manchester Street / Manchester Square." On the first page Barlow has drawn a large diagram of a proposed arrangement of magnets and goes into detail about the placement of the magnets. In part: "The whole therefore would be included in the box except the poles - between which any experiments at pleasure may be performed. We must of course have a few wooden and small iron wedges & to set the whole well together - As when the lifter is on the magnet will be harmless - it might I think be placed either in the Library or ante room without any danger..." English mathematician and optician Peter Barlow was Mathematical Master in the Royal Military Academy in Woolwich. His investigations on magnetism led to the important practical discovery of a means of rectifying or compensating compass errors in ships. Lightly creased and soiled. Mounting strip reinforces integral leaves. Folds, vertical fold touches "t" in Peter. Repaired at holes from opening and removing of wax seal. One repair seen at blank left margin of signature side. Accompanied by COA from PSA/DNA.

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    Auction Dates
    April, 2005
    13th Wednesday
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