Life of the Rev. Abraham Robertson, D.D. 401 



statistician adds he was " as much distinguished by his un- 

 affected modesty, and other moral qualities, as by his scien- 

 tific attainments." He further specifies his charity in 

 settling " annuities of £10 on five poor female cousins in 

 the humble rank of life from which he sprue g, and whose 

 infirmities, arising from old age, reduced them to the necess- 

 ity of receiving a supply from the poors' fund ; for which 

 annuities he paid £450."* 



A list of Dr. Robertson's writings up to 1824, is here 

 annexed from Watt's " Bibliotheca Britannica." It does not 

 contain the work on Euclid, which may have been of subse- 

 quent issue. 



Sectionum Conicarum, libri septem ; accedit, Tractatus de 

 Sectionibus Conicis, et de Scriptoribus qui earum doctrinam 

 tradiderunt. Oxon, 1793, 4to., 21s. A Geometrical Treatise of 

 Conic Sections. Oxford, 1802. 8vo. A Reply to a Critical and 

 Monthly Reviewer, in which is inserted Euler's Demonstration of 

 the Binomial Theorem. Oxford, 1808, 8vo. The Binomial 

 Theorem demonstrated by the Principles of Multiplication. Phil. 

 Trans., 1795, Abr. xvii., 573. A New Demonstration of the 

 Binomial Theorem, when the exponent is a positive or negative 

 Fraction. lb. 1806, 305. On the Recession of the Equinoxes. 

 lb. 1807, 57. Direct and expeditious Methods of calculating the 

 eccentric from the mean anomaly of a Planet. lb. 1816, 127. 

 Demonstrations of the late Dr. Maskelyne's Formulae for finding 

 the longitude and latitude of a celestial object, from its right 

 ascension and declination, and for finding its right ascension and 

 declination from its longitude and latitude, the obliquity of the 

 ecliptic being given in both cases. lb. 138. 



JAMES HARDY. 

 * New Statistical Account of Berwickshire, pp. 251, 254. 



