Copy letter from Herbert Rix, to Messrs Drake & Gorham 'Soirée Dear Sirs, The following are the electrical requirements for Wednesday, June 13th - Prof. S.P. Thompson (Council Room). 10-12 amperes as in May Marine Biol. Assoc. [Marine Biological Association] bay in main library, cluster of lights as before. Mr Bidwell, annexe recess current for 32 c.p. portable lamp. Three lantern exhibits in meeting room. Yrs [Yours] truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 7 July 1894