546 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



Von Heuglin, Theodor. A distinguished African explorer and collec- 

 tor ; a specialist in ornithology. Died at Stuttgart, at the age of fifty-two. 



Von Waltershausen, Dr. Professor of Mineralogy at Gottingen, 

 where he died, October 16th, aged sixty-seven. Specially interested in re- 

 searches upon volcanoes. 



Von WillemoeS-Suhm, Dr. R. Born September 11th, 1817. One of 

 the zoologists of the Challenyer expedition. Died on board that vessel be- 

 tween the Sandwich Islands and Tahiti, September 13th, at the age of thirty. 



Wing", Rev. Augustus. Especially interested in the investigation of 

 the rocks of Vermont, particularly the crystalline limestone, quartzite, and 

 slates of the central portion of the state ; discoverer of Lower Silurian fos- 

 sils in the crystalline limestone. Died at Rochester, Vermont, January 19th, 

 at the age of sixty-seven. 



Wright, Dr. Thomas S. A practicing physician, who found time for 

 investigations in British marine zoology. Died in Edinburgh, in October, 

 aged fifty-eight. 



Wyndham, T. Heathcote G. A chemical mineralogist. Died in No- 

 vember. 



