NECROLOGY. 625 



logical Survey of India. At one time filled the chair of geology in the Uni- 

 versity at Dublin, and occupied many other important posts as a geologist 

 and mineralogist. Died at Rugby, July 17th. 



Olney, Stephen F. An American botanist ; devoted especially to the 

 botany of Rhode Island. Died at Providence, R. I., July 27th, aged sixty- 

 six. 



Pfeiffer, Louis. A botanist and conchologist; especially known for his 

 monographs of the land shells. Died at the age of seventy-two. 



Pickering 1 , Dr. Charles. Born in 1804. Becoming a resident of 

 Philadelphia in 1827, he was for many years an active member of the Acad- 

 emy of Natural Sciences of that city. Was connected with the Wilkes Ex- 

 ploring Expedition. Travelled through portions of Europe, Asia, and Africa, 

 in search of ethnological data. Author of several important works connected 

 with his favorite studies, especially on the races and the geographical distri- 

 bution of man, plants, animals, etc. Died in Boston, March 17th, in the 

 seventy-fourth year of his age. 



Quetelet, Ernest. Distinguished as an astronomer ; connected with 

 the Royal Observatory of Brussels for several years. Born August 7th, 1835. 

 Died September 6th. 



Raspail, V. R. An eminent French naturalist ; a writer on systematic 

 botany, vegetable physiology, and chemical jurisprudence. The inventor of 

 a valuable microscope, still in use as a dissecting instrument. Died January 

 17th, in the eighty-fourth year of his age. 



Regnault, H. B. Born in July, 1810. In 1810 appointed Professor 

 of Physics in the College of France, and of Chemistry in the Polytechnic 

 School. In 1854, a director in the porcelain manufactory at Sevres. The 

 author of many valuable works on the use of steam as a motive power. Died 

 January 29th. 



Rokitansky, Professor Karl VOn. President of the Vienna Academy 

 of Sciences. Best known as a pathological anatomist. Died July 23d, at 

 the age of seventy-four. 



SeCChi, Father. Director of the Observatory in the Collegio Romano. 

 The founder of the society of Italian spectroscopists. At one time connected 

 with Georgetown College, D.C. Died February 26th, at the age of fifty- 

 nine. 



Seubert, MoritZ. A botanist. Died April 6th, at Carlsruhe, aged sixty. 



Soleil. An eminent manufacturer of optical instruments in Paris. Died 

 recently, in the eightieth year of his age. 



Stal, Professor C. Author of important papers on the Hemiptera and 

 Orthoptera. Connected with the State Museum of Sweden. Died June 14th, 

 in the forty-fifth year of his age. 



Stokes, Professor William, of Dublin. Died January 7th. 



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