LINXJiAN SOCIETY OF LONDOX. ixi 



the oldest member of the Royal Society of Edinburgh and the 

 Royal College of Physicians. During the last three years he had 

 been rapidly failing, and died on the 1st of January 1875, at an 

 advanced age, on the morning of the new year, respected and 

 regretted by his many friends. This notice will be interesting 

 to many of his old tenants aud their descendants and others 

 who are residents of the United States. They will remember him 

 better as " Ballyshear " than by his later title of " The Profes- 

 sor." Of his large family of eleven children, only three sons sur- 

 vive him. The eldest, Godfrey Macdouald, is a prominent rail- 

 road official in Chicago, and is Vice-President of the St. Andrew's 

 Society of Illinois. The two younger sons are both officers in the 

 British Army, and have served with distinction in India, where 

 they are at present stationed. 



Amongst other scientific subjects. Dr. Macdonald wrote upon 

 *' The Structure of Fishes," " On the Unity of Organization as ex- 

 hibited in the Skeleton of Animals," " On the Vertebral Homo- 

 logies as applicable to Zoology," and " On the V^ertebral Homolo- 

 gies in Animals." 



Dr. Macdonald was elected a Fellow on the 4th of April, 1826. 



John Trahekne Mogghiuge died on the 24th of November, 

 1874, at the age of thirty- two, at Mentone, where the state of his 

 health had compelled him to spend the winter for several years past. 

 He was a naturalist who had given evidence of considerable powers 

 of observation and research, and his works on " Harvesting- Ants 

 and Trap-door Spiders," and his " Contributions to the Flora of 

 Mentone " (the latter beautifully illustrated by his own hand) 

 contained important additions to our knowledge of different 

 branches of science. A love of uatui al history was with him here- 

 ditary, being the grandson of Dillwyn, the monographer of the 

 ConfervaB, and joint author, with Turner, of the ' Botanist's Gruide.' 



He was elected a Fellow on the 21st of January, 1869. 



Hugo ton Mohl* was born on the 8th of April, 1805, at 

 Stuttgart. His father, Ferdinand von Mohl, was a man of great 

 activity and ability who at different times held various important 



* Von Mohl died ia 1872. At the time of the publication of the Proceedings 

 for that year no materials were at hand for a biographical account of him. 

 Since then other circumstances have led to delay in the preparation of the 

 above obituary notice, for the substance of which I am indebted to the ' Botanische 

 Zeitung.' — Sec. L.S. 



