230 PROCEEDINGS OF THE AMERICAN ACADEMY 



Problems with Geometrical Construction, Vol. II. 



On the Binomial Theorem, Vol. XII. 



On Central Forces, Vols. XVI., XVII., XIX, XXL, XXII. 



Capillary Attraction, Vol. XVIII. 



On the Motion of a System of Bodies, Vols. XXIV, XXV., 



XXVI. 

 Parallelogram of Forces, Vols. XXVI., XXIX. 

 Composition and Resolution of Forces, Vol. XXVIII. 

 Variation of Constants in Elliptic Motion, Vol. XXX. 

 Virtual Velocities, Vols. XLII., XLIII. 

 Differential Equations, Vol. XLII. 



Differential Calculus, and Taylor's Theorem, Vol. XLV. 

 Exponential and Logarithmic Theorems, Vol. XLVIII. 



4. A Paper in Runkle's Mathematical Monthly for April, 1860, on 

 the Extraction of Roots, and one in June, 1861, on the Equilibrium of the 

 Lever. 



5. A Treatise on Elementary and Higher Algebra, New York, 

 1859. 



6. A Treatise (in MSS.) on the Differential and Integral Calculus. 

 It would be difficult to find in the history of science a character more 



simple, more noble, or more symmetrical in all its parts than that of 

 Thomas Graham, and he will always be remembered as one of the 

 most eminent of those great students of nature, who have rendered our 

 Saxon race illustrious. He was born of Scotch parents in Glasgow in 

 the year 1805, and in that city, where he received his education, all 

 his early life was passed. In 1837 he went to London as Professor 

 of Chemistry in the newly established London University now called 

 University College, and he occupied this chair until the year 1855, 

 when he succeeded Sir John Herschel as Master of the Royal Mint, a 

 post which he held to the close of his life. His death, on the 16th of 

 September last, at the age of sixty, was caused by no active disease, 

 but was simply the wearing out of a constitution enfeebled in youth by 

 privations voluntarily and courageously encountered that he might de- 

 vote his life to scientific study. As with all earnest students, that life 

 was uneventful, if judged by ordinary standards; and the records of his 

 discoveries form the only materials for his biography. Although one 

 of the most successful investigators of Physical Science, the late Master 

 of the Mint had not that felicity of language or that copiousness of 

 illustration, which added so much to the popular reputation of his dis- 



