Faraday to Thomas Twining   19 March 1850

R Institution | 19 Mar 1850

My dear Sir

Finding a copy of Sir W. Snow Harris’ paper containing a description of his Electrometer I have added it to this note. You will see the description page 214 Par. 7¹. I perceive the date is 1834. I could not at all remember it.

Ever Your Obliged | M. Faraday

- Twining Esq | &c &c &c