The Works of John Playfair (Paperback)

4. On the arithmetic of impossible quantities; 5. On the causes which affect the accuracy of barometrical measurements; 6. Remarks on the astronomy of the Brahmins; 7. On the origin and investigation of porisms; 8. Observations on the trigonometrical tables of the Brahmins; 9. Theorems relating to the figure of the earth; 10. On the solids of greatest attraction; 11. On the progress of heat in spherical bodies; 12. Account of a lithological survey of Schehallien; 13. On the naval tactics of the late John Clerk, Esq. of Eldin.