DONATIONS* 145 



London, Edinburgh, and Dublin Philosophical Magazine. No. 76 

 (^continued). 



S. Haughton. — Density of the Earth, deduced from the experi- 

 ments in Harton Coal-pit, 50. 



J. C. Moore. — Silurian rocks of Wigtonshire, 68. 



C. Babbao-e. — Action of ocean-currents in the formation of the 

 strata of the Earth, 69. 



J. Plant. — Keuper sandstone of Leicester, 71. 



P. B. Brodie. — Keuper sandstone of Warwickshire, 71. 



J. W. Salter. — Diploceras, 72. 



S. P. Woodward. — Orthoceras from China, 72. 



W. S. Symonds. — Trap-dykes in the Malvems, 73. 



J. G. Sawkins, — Movement of land in the South Sea Islands, 73. 



L. B. Ibbetson. — Origin of gold- veins, 73. 



No. 77. August 1856. 



H. Hennessy. — Influence of the Earth's internal structure on the 

 length of the day, 99. 



H. M. Witt. — Chemical composition of the Thames water, 114. 



H. J. Brooke. — Bleiniere, 126. 



H. C. Sorby, and J. Tyndall.— Slaty cleavage, 127, 129. 



S. Charters. — Mont Lacha, 150. 



W. Miller.— Mauna Loa, 150. 



T. Spratt. — Geology of Varna, 1 50. 



H. G. Bowen. — Geology of Trinidad, 151. 



J. W. Salter and W. Bailey. — Cretaceous fossils from Aberdeen- 

 shire, 152. 



J. Prestwich. — Correlation of the Middle Tertiaries of England, 

 France, and Belgium, 153. 



No. 78. September 1856. 



J. F. W. Herschel. — Slaty cleavage and contortions of rocks, 197. 



G. B. Airy. — Experiments in the Harton Colliery shaft for deter- 

 mining the mean density of the Earth, 228. 



Hautefeuille. — Mercury in the native argentiferous copper of 

 Lake Superior, 238. 



-. . No. 79. October 1856. 



H. James. — Mean specific gravity of the Earth, 314. 



Longman's Monthly List of New Books. N. S. Nos. 163 and 166. 



Madrid. -Annales de Miuas. 4 vols., 8vo. 1838-46. From 

 H. Sharpe, Esq. 



Microscopical Society, Quarterly Journal of Microscopical Science. 

 No. 17. October 1856. 



W. Gregory. — Post-tertiary Diatomaceous Sands of Glenshira, 

 Part 2, (d7 (plate). 



Middle Rhine Geological Society. Geologische specialkarte des 

 Grossherzogthuras Hessen. Section Giesen. Section Friedburg. 

 Mit einem Hohenverzeichniss und einer Profilkarte. 



Die Entstehung und seitherige Wirksamkeit des mittel- 



rheinischen geologischen Vereins. 



VOL. XIII. — PART I. 



