Zone d'identification
Cote
Add. MS a/204/31
Titre
James David Forbes to William Whewell
Date(s)
- [3 Feb. 1837] (Production)
Niveau de description
Pièce
Étendue matérielle et support
2 pp
Zone du contexte
Nom du producteur
Histoire archivistique
Source immédiate d'acquisition ou de transfert
Zone du contenu et de la structure
Portée et contenu
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'.