Paper, 'On a method of determining the value of rapid variations of a difference of potential by means of the capillary electrometer' by George J [James] Burch

Description

Burch writes: 'In 1882 a paper by Professor Burdon Sanderson appeared in the "Biologisches Centralblatt", in which an account was given of the employment of photography for the production by means of the capillary electrometer of records of the electrical phenomena accompanying the excitation of the leaf of Dionaea. Other physiologists have availed themselves of this method for the purpose of determining the times at which the electrical changes in living tissues begin and end, but no complete investigation has been made of the relation between the curves obtained and the amount of variation of the difference of potential of which they are the expression.'

Annotations in pencil and ink. Includes a note regarding a diagram.

Subject: Electricity / Physiology

Received 25 April 1890. Read 22 May 1890. Communicated by John Scott Burdon Sanderson.

A version of this paper was published in volume 48 of the Proceedings of the Royal Society as 'On a method of determining the value of rapid variations of a difference of potential by means of the capillary electrometer'.

Reference number

PP/16/8

Earliest possible date

1890

Physical description

Ink and graphite pencil on paper

Page extent

8 pages

Format

Manuscript