In your issue of Thursday under the heading "To-day" instead of your usual announcement "4.30, Ordinary Meeting", will you kindly insert "4.30, Bakerian Lecture by Messrs. Thorpe and Rodger, 'On the Relations between the Viscosity of Liquids and their Chemical Nature", the advertisement of which appears in your issue of to-day.
I am, yours faithfully,
Asst. Sec. R.S. [Assistant Secretary, Royal Society]'.