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Actions	Details Remove from selection Add to selection Title Als J H Lefroy to Francis Ronalds Reference UK0108 SC MSS 001/3/418 Date 1850-06-27 Scope and Content Regrets that in a paper of his he gave the impression that Ronalds' invention of a self recording instrument was subsequent to Mr Brooke's. He is contemplating connecting the Toronto Observatory to a telegraph wire with a view to testing Barlow's observations of the natural currents of electricity circulating in the earth by registering these movements photographically. Physical description Number of pieces: 1, Pages/folios: 3 Language English. Persons keyword Lefroy John Henry Captain Subject Toronto Conditions governing access Open Level of description file Hierarchy browser 110000003 Special Collection Manuscripts contains 321 parts UK0108 SC MSS 001 Ronalds Collection contains 11 parts UK0108 SC MSS 001/03 Correspondence while Honorary Director at the British Association's Observatory at Kew contains 567 parts UK0108 SC MSS 001/3/418 Als J H Lefroy to Francis Ronalds

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Title
Als J H Lefroy to Francis Ronalds
Reference
UK0108 SC MSS 001/3/418
Date
1850-06-27
Scope and Content
Regrets that in a paper of his he gave the impression that Ronalds' invention of a self recording instrument was subsequent to Mr Brooke's. He is contemplating connecting the Toronto Observatory to a telegraph wire with a view to testing Barlow's observations of the natural currents of electricity circulating in the earth by registering these movements photographically.
Physical description
Number of pieces: 1, Pages/folios: 3
Language
English.
Persons keyword
Lefroy John Henry Captain
Subject
Toronto
Conditions governing access
Open
Level of description
file

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