Record

PP - Proceedings Papers
- 23 - Scientific papers published in the Proceedings of the Royal Society volume 55, 1894
  - 14 - Paper, 'On the effect of magnetisation upon the dimensions of wires and rings of annealed iron' by Shelford Bidwell

RefNo	PP/23/14/1
Previous numbers	PP/55/15
Level	Item
Title	Manuscript, 'On the effect of magnetisation upon the dimensions of wires and rings of annealed iron' by Shelford Bidwell
Date	1894
Description	Bidwell writes: 'In the year 1885 I submitted to the Royal Society the first of a series of papers upon the changes produced by magnetisation in the dimensions of rods, &c., of iron and other magnetic metals [see PP/8/9]. The chief, and perhaps the most interesting, subject of the paper was the observation that if the magnetising force were sufficiently increased, the extension which a magnetised iron rod at first underwent (as originally noticed by Joule) was followed by contraction, the rod ultimately becoming shorter than when it was unmagnetised. The elongation was generally found to attain a maximum with a magnetising force of from 80 to 120 C. G. S. units, and to vanish with a force of 300 to 400, retraction occurring when still higher forces were applied.' Annotations in pencil and ink. Includes two pages of graphs and a photograph of the rings of anneated iron used in the experiments. Subject: Metallurgy / Magnetism Received 2 March 1894 / 12 March 1894. Read 1 March 1894. A version of this paper was published in volume 55 of the Proceedings of the Royal Society as 'On the effect of magnetisation upon the dimensions of wires and rings of annealed iron'.
Extent	8p
Format	Manuscript
PhysicalDescription	Ink and graphite pencil on paper
Digital images	View item on Science in the Making
AccessStatus	Open
RelatedMaterial	DOI: 10.1098/rspl.1894.0036
RelatedRecord	PP/8/9

Fellows associated with this archive

Code	PersonName	Dates
NA6772	Bidwell; Shelford (1848 - 1909)	1848 - 1909

Add to My Items

Botanical paintings by Jacob van Huysum and William Sartorius

Botanical paintings by Jacob van Huysum and William Sartorius

Tweets by theRCN

Papers of Robert Boyle

Papers of Robert Boyle

Early Letters

Papers of Elsie Widdowson and Robert McCance

Papers of Elsie Widdowson and Robert McCance

Referees’ Reports

Referees’ Reports

Browse Collections