Paper, 'A dissertation concerning the figure of the Earth. Part the second' by J T [John Theophilus] Desaguliers Desaguliers summarises work by Newton and Mairan and compares their experiments on this topic. Includes one page of geometrical figures including four circles and a U-shaped pipe. Subject: Mathematics / Astronomy Read to the Royal Society on 10 June 1725 Published in Philosophical Transactions as 'A dissertation concerning the figure of the Earth. Part the second.' 1725