Title
Manuscript letter to W H Preece from H R Kempe
Reference
UK0108 NAEST 020/093-094
Date
1878-06-18
Scope and Content
Manuscript letter to W H Preece from H R Kempe, referring to W H Winter's quadruplex system. Compares the system with that of Gerritt Smith, and finds many similarities. Includes diagram of Winter's apparatus. Kempe recommends Smith's system, which uses a compound relay.
Physical description
Number of pieces: 2, Pages/folios: 2
Language
English.
Persons keyword
Conditions governing access
Open
Level of description
file
