78 MATHEMATICS. 



POWELL (BADEN). See Anonymous. Elements (the) of curves. 8 

 1828. 



. Short (a) treatise on the differ, and integ. calculus. 8 



1829. 



. A short elementary treatise of experimental optics. See Powell 



(B.). A short elementary treatise, &c. 8 1833. (Optics.) 



. An elementary treatise on the geometry of curves and curved sur- 

 faces, investigated by the application of the differential and integral cal- 

 culus. 8 Oxford, 1830. 



PRASSE (MAURICE de). See Deprasse (M.). 



PRESTET (J.). See Anonymous. Elemens des Mathematiques. 4 

 1675. 



PRICE (RICHARD). Life. See Morgan (W). Memoirs, &c. 8 1815. 



. Essay on the present state of the population of England and Wales. 



See Morgan (W.). The doctrine of annuities. 8 1779. 



. Observations on reversionary payments, schemes for providing an- 

 nuities for widows, &c. ; on the method of calculating the value of as- 

 surances on lives and on the national debt ; also an appendix containing 

 tables, showing the probabilities of life in London, Norwich, and North- 

 ampton. 8 London, 1771. 



8 London, 1772. 



sr- 8 London, 1773. 



. 3 pts. in 2 vols. 8 1783. 



. Observations, &c.; and a general introduction by W. Morgan; 2 vols. 



8 1792. 



PRIEUR (C. A.). Rapport sur les moyens prepares pour etablir 1'uni- 

 formite des poids et mesures dans la Republique, &c. 8 Paris, an in. 

 [1795.] 



PRIMATT (STEPHEN). The city and country purchaser and builder. 

 8 London. 



PRIVAT de MOLIERES (JOSEPH). Premier recueil des lecons de 

 mathematique ; des nombres entiers, des fractions, des radicaux, de 

 1'algebre et des puissances par leurs exposans. 12 Paris, 1626.* 



PROCLUS. SeeEuclides. Elementorum lib. xv. fol. 1533. 



. The philosophical and mathematical commentaries on the 1 st book 



of Euclides. See Proclus. The philosophical commentaries, &c. 4 



1792. (Miscellaneous.) 



PRONY (GASPARD-CLAIR-FRANC.OIS-MARIE RICHE de). Methodes de 

 calcul pour la cubature des bois. See Encyclopedic Methodique. Fo- 

 rets et bois, &c. 4 1791, &c. (Miscellaneous.) 



. Description hydrographique et historique des Marais Pontins. 



See Prony (G. C. F. M. R. de). Description, &c. 4 1822. (Miscella- 

 neous.) 



. Eelaircissemens sur un point de 1'histoire des tables trigonomer 



triques. 4 Paris, an xii. [1804.] 



. Exposition d'une methode pour construire les Equations indetermi- 



n6es qui se rapportent aux sections coniques. 4 Paris, 1791. 



. Formules pour calculer 1'efFet d'une machine a vapeur a detente et 



a un seul cylindre ; observations sur un coefficient de correction qui y 



* This copy contains a second title-page as follows : ' Lemons de mathematiques ne- 

 cessaires pour Fintelligence des principes de physique qui s'enseignent actuellement au 

 College Royal, &c.' It is dated 1725 de rimprimerie de Thiboust ; the 1st is 'chez Jean 

 Francois Tabarie." The date 1626 is certainly erroneous, in as much as Privat de Molieres 

 was born in 1677. 



