374 Presidentship of Lord Wrottesley 1856 



Four vacancies were declared. These were filled by the 

 election of Dr. Bence Jones, Rev. John Barlow, Warren De 

 la Rue, and Dr. Acland. 



It was resolved that dinners should be provided on the 

 second Thursday of each month during the vacation and 

 that the dinner should be omitted on the first Thursday 

 of every month during the Society's session. 



Henry Bence Jones, M.D., physician to St. George's 

 Hospital, was widely known in his later years as the Secretary 

 to the Royal Institution. He was elected into the Royal 

 Society in 1846. The Rev. John Barlow had been elected 

 into the same Society as far back as 1834. Warren De la 

 Rue, a partner in his father's well-known firm of printers 

 and ornamental paper-makers, was an ingenious mechanician 

 to whom the invention of the first machine for making 

 envelopes was due. He was fond of science and turned 

 his inventive faculty to the devising of instruments for 

 research. He devoted himself to astronomical studies and 

 more especially to the application of photography to the 

 registration of celestial objects. He constructed the helio- 

 graph at Kew for recording the daily changes on the surface 

 of the sun, and was one of the students of sun-spots. He 

 was elected President of the Royal Astronomical Society 

 in 1864. He was likewise a chemist of great ability and 

 originality, and his merit in this department was recognised 

 by his chemical compeers, who twice elected him President 

 of the Chemical Society. He became F.R.S. in 1850 and 

 was awarded a Royal Medal in 1864. The genial physician 

 Dr. Henry Acland has been already mentioned (p. 347). 



1857. In 1857 the Anniversary Meeting took place on 

 June 25th and was attended by twenty members, Arch- 

 deacon Burney in the chair. The Treasurer reported that 

 his expenditure during the past year had amounted to 

 90 6s. and that he had a balance in his hands of 14 

 os. 5d. x 



1 From a note in the Minute-book No. 3, p. 14, we learn that the 

 number of dinners during the financial year which ended at this Anni- 

 versary was twenty-three, and the number of persons who dined was 

 175, being an average of 7.6 at each dinner. 



