78 Method af extracting the Cataract. 



nected wilh the inquiries relating to physical astronomy ; 

 4. On the sine and cosine of the multiple arc ; on the sine 

 and cosine of an arc in terms of the arc itself, and a new- 

 theorem for the elliptic quadrant ; 5. On magic squares ; 

 6. An account of an experiment for determining the uni- 

 versal attraction ofnKUler; 7. Observations on polygonal 

 numbers; 8. On the irreducible case of cubic equations; 

 9. The Senate-hoase proi)!enis given in the university of 

 Cambridge to the candidates for honours dunng the ex- 

 amination for the degree of B. A. in January 1811 ; 10. 

 Continuation of Legendre's Memoir on elliptic transcen- 

 dentals ; and 11. A series of new questions to be answered 

 in a subsequent Number. 



The Royal College of Surgeons in London have awarded 

 the Jacksonian prize of ^"10. and an extraordinary pre- 

 mium of i£^IO. to Mr. John Smith Soden, of Coventry^ and 

 Mr. Jamt-s Giilman, of Hlghgaie, both members of that 

 College, for tlieir Dissertations on \.ht Bite ofa raOid Animal, 

 from the consideration that such two dissertations are highly 

 meritorious productions, and are equally worthy of the 

 Jacksonian prize. 



Dr. Ouadrie, professor of anatomy at the university of 

 Bologna, lately performed, while on his journey to Padua, 

 two operations upon two individuals entirely blind, in the 

 presence of the professors Socrafi and Brera and all their 

 pupils. In these operations he demonstrated the advan- 

 i.igcs of a method invented by himself for extracting the 

 cataract, without injury either to the transparent cornea or 

 the it is. His method was acknowledged to be superior to 

 that of Wcnzcl, and to tiial by simple pressure. His- 

 patients recovered their si2.ht. The foreign professors 

 loudly extol the new method, as easy, more practicable, 

 and less hazardous, than that of simple pressure of the cata- 

 ract. Dr. Ouadrie has promised to make his method public. 



M. Carnot, in his new Treatise on the Defence of For- 

 tified Places, recommends the besieged to fire howitzers 

 loaded wilh grape-shot or musket-ball, at an elevation of 

 45 degrees, when the enemy have made their approaches to 

 w ithin a certain distance, which may be effected without 

 tlieir bcins; exposed, and the shot will do more execution, 

 not being slopped bv the enemy's works. M. Carnot's 

 suwo'cstion has been adopted iia France, and now Jbrnjs 

 pari of the arti'iery exercise. 



Some 



