LINNEAN SOCIETY Or LONDOX. 47 



in Bedfordshire, then at Bradford, and since 1857 at Leytonstone, 

 near London. Having with two of his brothers bought ' High- 

 cliif' at Lyme Eegis in 1871, he spent inucli of his time there, 

 especially after his retirement from business in 1888. Here he 

 also died somewhat suddenly on July 19tli of the present year. 

 When Arthur Lister became known as a botanist he was already 

 well advanced in years, and his first publication was a short note 

 in the ' Journal of Botany ' for 1877 : " How to preserve the 

 Spores of Agaricini and Polyporei." He had, however, been an 

 ardent lover of nature from childhood and a zealous collector and 

 observer for many years, and was of course perfectly familiar 

 with the microscope and its technique. This fitted him eminently 

 for the \\ork for which he specialised so late in life, and which he 

 pursued with signal success — the study of the Mycetozoa. His 

 first contribution to this fascinating class of organisms was pub- 

 lished (in collaboration with his daughter) in 1888, and others, to 

 the number of 35, followed, the last appearing a few weeks before 

 his death. His great A^ork, however, was his Monograph of the 

 Mycetozoa, published by the British Museum in 1894. Although 

 professing to be a descriptive catalogue of the species in the 

 Herbarium of the British Museum, it is in reality a complete 

 compendium of all the Mycetozoa known up to 1894, amply 

 illustrated by numerous woodcuts and 78 plates — photographic 

 reproductions of very beautiful coloured drawings by himself and 

 his daughter Grulielma. 



Arthur Lister became a JFellow of the Linnean Society in 1873, 

 and of the Eoyal Society in 1898. He was also for many years 

 a member of the Essex and Dorset Field Clubs, and of the Myco- 

 logical Society, as whose President he acted in 1906-07. He was 

 a Justice of the Peace, and in many ways, but always unobtru- 

 sively, gave evidence of his public spirit. He belonged to the 

 Society of Friends. Those who had the good fortune of knowing 

 him intimately, remember him as a delightful companion and a 

 most lovable man. [O. S.} 



Professor Karl August Mobius, who died in Berlin on the 2Gth 

 April, 1908, was born at Eilenburg, in Prussian Saxony, in 18:25, 

 and was originally trained for a school-teacher, but his enthusiasm 

 was awakened by reading the works of Alexander von Humboldt, 

 and he set out for Berlin with very slender means. By 

 giving lessons, he succeeded in getting a university training, and 

 amongst his teachers may be mentioned C. Gr. Ehrenberg and 

 Johannes Mueller. Becoming assistant to Lichtenstein, he was 

 aided in 1853 to a teaching appointment at Hamburg, where he 

 found time to prosecute his faunistic studies. In 1868 he went 

 to Kiel as Professor of Zoology, and in conjunction with H. A. 

 Meyer he produced the two folio volumes of the ' Fauna der Kieler- 

 Bucht,' Leipzig, 1865-72, a rich storehouse of observations. He 

 had already established a salt-water aquarium, and the famous 



