Title
A.l.s to W H Preece from W E Langdon
Reference
UK0108 NAEST 020/035
Date
1872-10-11
Scope and Content
A.l.s. to W H Preecefrom W Langdon, referring to changes in duplex experiments. Suggests that the two keys be fixed for each duplex arrangement. With MS comment from W H Preece, asking Mr [Kerry's] opinion of the suggestion. Also, MS message (unattributed) to W H Preece, informing Preece that the suggestion would not improve matters.
Physical description
Number of pieces: 1, Pages/folios: 1
Language
English.
Persons keyword
Subject
Conditions governing access
Open
Level of description
file
