OBITUARY. 391 



Delaware, ... 3 Arkansas, ... 1 Texas, . r . .2 



Maryland, ... 22 Tennessee, . . 7 Iowa, ... 



Virginia, . . . .20 Kentucky, ... 8 Wisconsin, ... 3 



North Carolina, . . 3 Ohio, ... 90 District of Columbia, 12 



South Carolina, . . 4 Michigan, ... 3 Foreign, . . .25 



Georgia, ... 6 Indiana, ... 22 Not stated, . 1 



Alabama, ... 2 Illinois, . . .15 



Mississippi, ... 2 Missouri, ... 7 Total, . . . 994 

 Louisiana, ... 7 Florida, . . 



Patents, re-issues, designs, and additional improvements are all included in the above 

 table. 



OBITUARY 



OF PERSONS EMINENT IN SCIENCE. 1850. 



Tlwmas Amyot, F. R. S. 



Lieutenant Bache, U. S. N., drowned in California. 



William Beer, a celebrated astronomer, who, in conjunction with Maedler, published the 

 " MappaSelenographica," or Map of the Moon, which gained for the authors the Lalande 

 prize from the French Academy. He also published a work called "General Compared 

 Selenography." 



M. Edouart Biot. 



M. Ducrotay de Blainville, the successor of Cuvier in the chair of Comparative Anat- 

 omy at the Museum of Natural History, in Paris; a very distinguished naturalist, and the 

 author of several elaborate works. 



Sir Felix Booth, who subscribed nearly 20.000 to defray the expenses of Sir John 

 Ross's expedition to the North Pole, and made a weekly allowance to the wives of the 

 sailors during their absence. Boothia Felix was named in his honor. 



John Burns, Professor of Surgery in the University of Glasgow. He was the author of 

 several well-known medical works. 



John Caldecott, astronomer to the Rajah of Travancore, died at Trevandrum, India, 

 December, 1349. 



Prof. Canstatt of the University of Erlangen, a distinguished physician. 



Prof. Stephen Chase, Professor of Mathematics in Dartmouth College. 



William R. Clanny, a well-known surgeon, and a writer on mining matters. He de- 

 vised in 1813 a safety-lamp for mines, and received medals from the London Society of 

 Arts and the Humane Society. Although his lamp was successful, it was very cumber- 

 some, and was superseded by Davy's in 1816. 



Dr. N. Coyer- Collard. Professor of Hygiene at Paris. 



John Dennett, the inventor of the shipwreck rocket known by his name. 



Joseph Droz, member of the French Academy. 



Lieut. Henry Eld, U. S. N. He was the first to descry the Antarctic Continent, dis- 

 covered by the United States Exploring Expedition, Jan. 16, 1339. 



M. dc Felitz, Member of the French Academy. 



Dr. Fouquier. Professor of Clinique Interne at the Paris Academy of Medicine. 



M. Benjamin Francceur. 



Lieut. Gale, the aeronaut, killed in making his one hundred and tenth ascent. 



Dr. William Gambel. an eminent naturalist, formerly Secretary of the Academy of 

 Natural Science, Philadelphia. He died while making an exploration in California. 



Gay-Lussac, one of the most distinguished scientific men of the age. There is no 

 branch of the physical and chemical sciences which is not indebted to him for some im- 

 portant discovery. He discovered, among other things, the fundamental laws of the ex- 

 pansion of gas and vapors, made a balloon ascent which was productive of many interest- 

 ing results, and wrote many works upon chemistry. He was equally distinguished as a 

 natural philosopher and a chemist. 



Dr. R. E. Griffith, Professor of Materia Medica, &c., in the University of Virginia. 

 He was the author of a Medical Botany and a Universal Formulary. 



Joseph Hardy, inventor of a machine for doubling and twisting cotton-yarn, for which 

 he received a reward from the Dublin Society ; also of a scribbling machine for carding 



