596 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



Thuret, M. An eminent French botanist, and a voluminous writer, es- 

 pecially upon the physiology and reproduction of the algae. Died May 10th. 



Tillman, Professor Samuel D. A zealous student of physical and 



experimental science. A member and officer of the American Institute of 

 New York. Died September 4th, at the age of seventy-two. 



Timbs, John. Editor of "The Year-Book of Facts." Died in London, 

 in March, at an advanced age. 



Waldeck, Baron J. F. de. A well-known traveler in Africa and Amer- 

 ica, and distinguished as an artist. Born in Prague ; died in Paris, April 

 30th, at the age of one hundred and nine ! 



Walker, Francis. An eminent entomologist, long connected with the 

 British Museum. Author of several works upon the diptera, etc. Died 

 October 5th. 



Webster, Thomas. An eminent patent lawyer of London. Died June 

 3d, in the sixty-fifth year of his age. 



Wheatstone, Sir Charles. Professor of Experimental Philosophy in 

 King's College, London. Discoverer of important practical applications in 

 electrical science. Born in 1802. Died October 20th. 



Willis, Professor R. Known as filling the chair of Jackson Professor 

 at Cambridge, England. Died early in March. 



Wilson, William Parkinson. Professor of Mathematics in Melbourne 

 University, at which place he died, December 11th, 1874. 



Winlock, Professor Joseph. Director of the observatory of Harvard 

 College. Distinguished as an astronomer, and as an inventor of devices for 

 improving the methods and qualities of astronomical manipulation. Died 

 June 11th, at the age of forty-nine. 



Zetterstedt, Professor Johann Wilhelm. An eminent Swedish en- 

 tomologist, for many years Professor of Natural History at Lund. Died at 

 Stockholm. 



