Zone d'identification
Cote
Add. MS a/208/59
Titre
Letter from Humphrey Lloyd
Date(s)
- 5 Apr. 1852 (Production)
Niveau de description
Pièce
Étendue matérielle et support
4 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
Trinity College, Dublin - HL describes the tidal work they are conducting: 'We have two series of observations - one of the heights of each high and low water, without reference to time; and the other of both heights and times of all the spring and neap tides observed throughout the semidiurnal period, at intervals of 15 minutes'. They have a complete series for 1851. Professor Haughton [Samuel Haughton?] has undertaken to work out the results using George Airy's method. The tide gauges are self-registering as to height but not as to time.