Title
Manuscript letter to W H Preece from [David Lumsden]
Reference
UK0108 NAEST 020/032
Date
1872-11-21
Scope and Content
Manuscript letter to W H Preece from [David Lumsden] referring to experiments conducted on Preece's 'double working' (i.e. duplex) equipment. Encloses data on the amount of work passed over the wire over two days. Suggests improvements to the experiments, including further equipment and changes in practice.
Physical description
Number of pieces: 1, Pages/folios: 2
Language
English.
Persons keyword
Subject
Conditions governing access
Open
Level of description
file
