CONTENTS 

 OF THE SIXTY-EIGHTH VOLUME. 



(jN the Ellipticity of the Earth as deduced from Experiments 

 made 'with the Pendulum. By J. Ivory, Esq. M.A. F.R.S. 



Page 3, 92 



On the Equilibrium of a Fluid attracted to afixt Centre. By 

 J. Ivory, Esq. M.A. FR.S. 10 



Researches on the Theory of Hydro-dynamics. By Thomas 

 Tredgold, Esq. Civil Engineer 11, 112 



An Account of some Geological Specimens, collected by Captain 

 P. P. King, in his Survey of the Coasts of Australia, and by 

 Robert Brown, Esq., on the Shores of the Gulf of Car- 

 pentaria, during the Voyage of Captain Flinders. By 

 William Henry Fitton, M.D. F.R.S. V.P.G.S. 14, 132 



On Specif c and Latent Heat, and on Alcoholic Engines. By 

 Mr. Henry Meikle 34 



On the Diving-Bell. By A Correspondent ... 43 



Statement of a Plan for making a minute Survey of the Heavens 

 and for the Formation and Publication of some new Celestial 

 Charts under the Superintendence and Direction of the Royal 

 Academy of Sciences at Berlin 45 



Some Account of the Spherical and Numerical System of Nature 

 of M. Eli as Fries. By John Lindley, Esq. F.L.S. &c. 81 



Experiments proving that Mariotte's Law is applicable to all 

 Kinds of Gases ; and to all Degrees of Pressure under which 

 the Gases retain their Aeriform State. By H. C. Oersted 



102 



On the Adhesion of Glue. By B. Bevan, Esq. . . . Ill 



Properties of the Trapezium. By T. S. Davies, Esq. of Bath 



116 



Decas sexta novarum Plantarum Succulentarum ; a sixth De- 

 cade of New Succulent Plants. By A. H. Haworth, Esq. 

 F.L.S. Sfc 125 



Vol. 68. a 



