Referring to the proposal you have been good enough to make for sending an exhibit to the next Soiree of the Society on the 10th June, I am desired by the Soiree Committee to say that they would be very glad to have your new form of stereoscope shown, but that they think the Wheatsone Bridge hardly suitable for the occasion. I enclose herewith a schedule which, in the case of your answer being in the affirmative, I should be glad if you would fill up and return to me in the course of two or three days.
I am, yours faithfully,
Asst. Sec. RS. [Assistant Secretary, Royal Society]'.