270 THE ZOOLOGIST. 



which he himself took in its production extended far beyond the 

 ordinary duties of an Editor. In vol. i. (Jan. 1878) he wrote the 

 article Apes and Monkeys, and a portion of that on Lemurs. In 

 vol. iii. (Dec. 1879) he wrote the sections on Edentata and Mar- 

 supialia. To vol. iv. (Dec. 1880) he contributed the articles on 

 Reptilia and Amphibia. The Introduction to the Invertebrata in 

 vol. v. (Dec. 1881) was his, as well as the articles Vermes, Zoophyta, 

 and Infusoria, which appeared in vol. vi., published in Jan. 1883. 

 Thus it will be seen that, besides being Editor, he was one of the 

 largest contributors to this popular and very useful work. 



Of less important publications mention may be made of a 

 small octavo volume, ■ The Sea Shore,' which was issued by the 

 Society for Promoting Christian Knowledge, in 1879, as one of a 

 series entitled ■ Natural History Rambles.' Not confining his 

 attention to the marine plants and animals which may be found 

 on the beach, or in rock-pools, Dr. Duncan treated the subject 

 from a broader point of view, so as to show, in a general way, 

 the various directions in which sea-side rambles may be made 

 interesting and instructive ; and the ten chapters relating to 

 animal life furnish an excellent summary of marine zoology, in 

 which the appearance, habits, structure, and physiology of the 

 animals dealt with are described with great clearness, and with 

 an almost total avoidance of so-called hard words. 



Dr. Duncan was also an occasional contributor to the * Popular 

 Science Review,' when under the editorship of his friend the late 

 Mr. W. S. Dallas. In this periodical he published some extremely 

 interesting and instructive articles, such, for instance, as his 

 " Studies amongst Amoebae," with two plates (1877) ; " Notes on 

 the Ophiurans, or the Sand and Brittle Stars," with a plate (1878) ; 

 and an examination of the opinions of Voltaire and Laplace 

 regarding Geology (1880). In all these contributions we see the 

 workings of a thoughtful mind, the notes of a serious reader, an 

 earnest worker, and a sound teacher. 



In 1881 the Geological Society awarded him the Wollaston 

 Medal. He was a Fellow of the Royal, Linnean, and Geological 

 Societies, and was a former President of the last named as well as 

 of the Royal Microscopical Society. As a constant attendant at 

 the evening meetings of all. these Societies, until within a few 

 months of his decease, his genial presence will be much missed 

 by the many friends by whom he was there surrounded. 



