Record

RefNoMS/257/5/85
AltRefNoSa.1765
Previous numbersES5/16/1765
LevelItem
TitleLetter from John Welsh, 19 St John's Grove, Richmond to Edward Sabine
Date11 November 1858
DescriptionWelsh was sorry to learn of Sabine’s ill health due to a cold and refers to his own ‘severe’ cough. Welsh has the R2 and R6 magnets which arrived on 12th February 1857 in a vibration apparatus along with a nine inch unifilar which is now at Rome. Welsh discusses the whereabouts of magnets and rings that he believes are still in Woolwich. Reference to Captain [Charles] Younghusband’s experiments on R2 and R6 magnets which Welsh suggests can be repeated [at Kew]. Condition of the magnets. Welsh sends a diagram [not enclosed] regarding the deflections of the dip needle by [Johann von] Lamont’s method and horizontal needle, discusses the ‘inductive action of the earth’ diminishing ‘the force of the magnet’.
Extent7p
FormatManuscript
PhysicalDescriptionInk on paper
AccessStatusOpen
Fellows associated with this archive
CodePersonNameDates
NA1680Welsh; John (1824 - 1859)1824 - 1859
NA8279Sabine; Sir; Edward (1788 - 1883)1788 - 1883
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