Identity area
Reference code
Add. MS a/204/31
Title
James David Forbes to William Whewell
Date(s)
- [3 Feb. 1837] (Creation)
Level of description
Item
Extent and medium
2 pp
Context area
Name of creator
Repository
Archival history
Immediate source of acquisition or transfer
Content and structure area
Scope and content
Incomplete letter, lacking first page(s). JDF looks forward to WW's completed work [The History of the Inductive Sciences, from the Earliest to the Present Time, 3 vols, 1837]. He has planted all his long thermometers in safety [see JDF to WW, 26 Dec. 1836]. If WW has not yet completed his section on the history of magnetism JDF will send WW proof sheets announcing his law of diminution [see JDF to WW, 26 Dec. 1836]. He has commenced experiments designed 'to measure the Depolarizing effect of different thicknesses of Mica on heat from different sources, and by ascertaining the periods of Maxima and Minima to find if possible the lengths of the waves. I hope also to do something by finding the critical angles of total Reflection'.