38 DONATIONS. 



London, Edinburgh., and Dublin Philosophical Magazine. Fourth 

 Series. Vol. xl. Nos. 264-266. From Dr. W. Francis, F.O.S. 



J. Ball. — On the Cause of the Descent of Glaciers, 1. 



Archdeacon Pratt. — Reply to M. Delaunay's objection to the late 

 Mr. Hopkins's Method of determining the Thickness of the Earth's 

 Crust by the Precession and Nutation of the Earth's Axis, 10. 



J. CroU. — On the Cause of the Motion of Glaciers, 153. 



Longman's Notes on Books. Yol. iv. No. 62. August 1870. 



Milan. Atti deUa Societa Italiana di Scienze Natural!. Yol. xii. 

 Fascicoli 3 & 4. February and March 1870. 



Proceedings of the Geological Section in Catania, 456. 



Escursione ad Aci-Castello, ai Faraglioni e ad Aci-Reale del 24 



agosto 1869, 492. 

 Ascensione dell' Etna del 27 e 28 detto, 495. 

 Aradas. — Un abozzo del Panorama etneo. Discorso d'apertura della 



Riunione, 499. 



. Brevissimo sunto della Conchigliologia etnea, 535. 



. Descrizione di una nuova specie del genere Triforis di Des- 



hayes, 547. 

 Renoit e Aradas. — Nota su alcune conchiglie di Sicilia pubblicate 



come nuove dal prof. Carmelo Maravigna, 599. 

 Seguenza. — Intorno la posizione stratigrafica del Clypeaster cdtus, 



Lk., 657. , _ 



Foti. — Succinta descrizione della geologia di Barcellona e territorj 



circonvicini, 661. 



Monthly Microscopical Journal. Yol. iii. Nos. 19-21. July to 

 September 1870. 



' S. AUport. — The Microscopical Examination of Rocks and Minerals, 



98. 



Moscow. Bulletin de la Societe Imperiale des NaturaKstes de Mos- 

 cou. Annee 1869. No. 4. 1870. 



P. Kropotkin. — Geognostisches tiber den Kreis Mjeschtschowsk im 



Gouvernement Kaluga nebst palaontologischem Beitrag von H. 



Trautschold, 215 (1 plate). 

 R. Hermann. — Ueber die Zusammensetzung des Lawrowits, sowie 



liber Yanadiolith, ein neues Mineral, 234. 

 . Ueber die wahrscheinliche Identitat von Laxmannit und 



Yauq[uelinit, sowie liber Phosphorchromit, ein neues Mineral, 240. 



Nature (Journal). Yol. ii. Nos. 34-48. June to September 1870. 



H. P. Malet.— The Interior of the Earth, 141. 



R. C. Hart. — Geology and the Chatham Dockj'ard, 143. 



W. Boyd Dawkrns. — Fossil Mammals of North America, 282. 



D. Forbes.— On Volcanoes, 283, 336. 



A. Geikie. — The Ice-age in Switzerland, 310. 



A. H. Green. — Volcanic Agency v. Denudation, 375. 



W. Luscombe.— Geology of Devonshire, 376. 



J. S. Newberry. — On Ancient Lakes of Western America, their 



Deposits and Drainage, 385. 

 G. E. De Ranee. — Notes on the Geology . of the County around 



Liverpool, 391. 

 J. P. Earwaker. — Geological Discoveries in Liverpool, 397. 



