/. Names of Authors. 401 



Babbage, C, On the notation employed in the Calcuhis of Functions : May 1, 

 1820 ; I. 63—76. 



On the General Term of a New Class of Infinite Series : May 3, 



1824; II. 218—225. 



On the influence of Signs in Mathematical Eeasoning: Dec. 16, 1821; 



II. 325—377. 

 Baxter, H. F., On Organic Polarity: March 8, 1858 ; x. 248—260. 

 Bevan, B., Experiments on Percussion : Nov. 10, 1825 ; ii. 444. 

 Bond, Prof., Statistical Report on Addenbrooke's Hospital for 1836 : March 13, 



1837 ; VI. 361—377. 



The same for 1837: Apr. 30, 1838 ; vi. 565—575. 



Boole, Prof. George, Of Propositions numerically definite : March 16, 1868 ; 



XI. 396—411. 

 Brewster, Dr., On the Brazilian Topaz; its colour, structure, and optical 



properties : May 6, 1822 ; ii. 1—9. 

 Brodie, p. B., On Land and Freshwater Shells, and Bones of Animals found 



near Cambridge : Apr. 30, 1838 ; viii. 138—140. 

 Cayley, Prof., On the Theory of Determinants : Feb. 20, 1843; viii. 75—88. 



On the Theory of Involution : Feb. 22, 1864 ; xi. 21—38. 



On a case of the Involution of Cubic Curves: Feb. 22, 1864; xi. 39—80. 



On the classification of Cubic Curves : Apr. 18, 1864 ; xi. 81 — 128. 



On Cubic Cones and Curves : Apr. 18, 1864; xi. 129 — 144. 



On certain Skew Surfaces, otherwise ScroUs : Nov. 11, 1867 ; xi. 277 — 289. 



• On the Six Coordinates of a Line : Nov. 11, 1867; xl 290—323. 



— — On a certain Sextic Torse : Nov. 8, 1869 ; xi. 507—523. 



On the Centro-surface of an EUipsoid: March 7, 1870; xii. 319—365. 



On Dr Wiener's model of a cubic surface with 27 real lines ; and on the 



construction of a double-sixer: May 15, 1871 ; xii. 366 — 383. 



On the geometrical Representation of Cauchy's theorems of Root-limita- 



tion : Feb. 16, 1874 ; xil. 395—413. 

 Cecil, W., On Hydrogen Gas, as a moving power in Machinery, &c. : Nov. 27, 

 1820; L 217—239. 



On an apparatus for grinding Mirrors and Object Lenses : Dec. 11, 1822 ; 



n. 85—99. 

 Challis, Prof., On the extension of Bode's Law to the distance of Satellites 

 from their Primaries : Dec. 8, 1828 ; in. 171—183. 



On the small Vibratory Motions of Elastic Fluids : March 30, 1829 ; in. 



269—320. 



On the general Equations for the Motion of Fluids, &c., &c. : Feb. 22, 



1830; in. 383—416. 



Researches in the Theory of the Motion of Fluids: March 3, 1834 ; v. 



173—203. 



On the Decrement of Temperature depending on the Height above the 



Earth's surface : Feb. 13, 1837; vl 443—455. 



On the motion of a small Sphere, acted on by Vibrations of an Elastic 



Medium: Apr. 26, 1841 ; vil. 333—353. 



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