20 
Transactions of the Society. 
became its President in 1876. In 1866 lie was elected a Fellow of the 
Royal Society, and served on its Council from 1876 to 1878. He was 
also President of the Geological Section of the British Association in 
1879. 
Prof. Duncan’s favourite science was Palaeontology, especially the 
Corals and Echinoderms. The Palaeontographical Society published his 
Monograph of the British Fossil Corals’ during 1866-72. In 1879 his 
memoir on the Syringosphseridse Scientific Results of the second Yar- 
kand Mission ’) was published. Many papers by him will be found in the 
publications of the Royal, Geological, and Linnean Societies, and also in 
the scientific periodicals. In conjunction with Dr. J. W. Griffith he edited 
the third edition of the ‘Micrographic Dictionary.’ In conjunction with 
Mr. Sladen he wrote the monographs on the Tertiary Echinoidea of 
India, in the * Palaeontologia Indica.’ He also wrote 4 A Monograph of 
the Fossil Corals and Alcyonaria of Sind,’ published in 1880. He died 
on the 28th May, 1891. 
