I. Rames of Authors. 403 



De Morgan, Prof., On a Question in the Theory of Probabilities : Feb. 26, 



1837 ; VI. 423—430. 

 On the Foundation of Algebra: Dec. 9, 1839; vii. 173—187. 



Do. Do. Do. Nov. 29, 1841 ; vii. 287—300. 



Do. Do. Do. Nov. 27, 1843; VIII. 139— 142. 



- — ■ Do. Do. On Triple Algebra : Oct. 28, 1844; viii. 241—254. 

 On Divergent Series, &c., &c. : March 4, 1844; viii. 182—203. 



On the Structure of the Syllogism, and its application, &c. : Nov. 9, 



1846; VIII. 379—408. 



On Integrating Partial Diflferential Equations : June 5, 1848 ; viii. 606 



—613. 



On the Symbols of Logic, the Theory of the Syllogism, &c., &c. : Feb. 25, 



1850; IX. 79—127. 



On some points of the Integral Calculus : Feb. 24, 1851 ; ix. pt. ii, 



107—138. 

 — — On some points in the Theory of Difiterential Equations : March 27, 1854 ; 



IX. 515—554. 



On the singular points of Curves, and on Newton's method of Co-ordi- 



nated Exponents: May 21, 1855; ix. 608—627. 



On the Solution of a Differential Equation : Apr. 28, 1856 ; x. 21 — 26. 



On the Beats of Imperfect Consonances: Nov. 9, 1857; x. 129 — 145. 



On the Syllogism, No. iii., and on Logic in general : Feb. 8, 1858 ; x. 



173—230. 



On the Syllogism, No. iv., and on the Logic of Relations : Apr. 23, 1860; 



X. 331—358*. 



On the Proof of the existence of a Root in every Algebraic Equation : 



Dec. 7, 1857 ; x. 261—270. 



On the General Principles of which the Composition of Forces is a Con- 



sequence : March 14, 1859; x. 290—304. 



On the Theory of Errors of Observation : Nov. 11, 1861 ; x. 409 — 427. 



■ On the Syllogism, No. v., and on some parts of the Onymatic System : 



May 4, 1863; x. 428—487. 



On Infinity: and on the sign of Equality: May 16, 1864; xi. 145 — 189. 



• On a Theorem relating to Neutral Series : May 16, 1864; xi. 190 — 202. 



On the Early History of the Signs + and- : Nov. 28, 1864; xi. 203—218. 



On the Root of any Function : and on Neutral Series, No. ii. : May 7, 



1866; XI. 239—266. 



Note on the same : Oct. 26, 1868 ; xi. 447—460. 



Denison, E. B., On Clock Escapements: Nov. 27, 1848; vin. 633—638. 



On Turret-clock Remontoirs : Feb. 26, 1849 ; viii. 639—641. 



On some recent Improvements in Clock-Escapements: Feb. 7, 1853; ix. 



417—430. 

 Donaldson, Dr. J. W., On the Structure of the Athenian Trireme : Nov. 6, 

 1856 ; X. 84—93. 



On the Statue of Solon mentioned by .^schines and Demosthenes : 



Feb. 22, 1858; x. 231—239. 



