XX. peoceedi:n'gs of the geological society, [vol. Ixxiii, 



Ekaterinburg. — Societe Ouralienne d'Amateurs des Sciences Naturelles 



Falmouth. — Royal Cornwall Polytechnic Society. 



Geneva. — Soci^t6 de Physique & d'Histoire Naturelle. 



Glasgow. — Geological Societj-. 



Gloucester. — Cotteswold Naturalists' Field-Club. 



Hereford. — Woolhope Naturalists' Field-Club. 



Hertford. — Hertfordshire Natural History Society. 



Hull Geological Society. 



Johannesburg. — Geological Society of South Africa. 



Kiev. — Societe des Naturalistes. 



Lancaster (Pa.). — "Economic Geology.' 



Leeds. — Yorkshire Geological Societ}'. 



Leicester Literary & Philosophical Society. 



Lima. — 'Revista de Ciencias.' 



Lisbon. — Sociedade de Geographia. 



. Societe Portu^gaise des Sciences Naturelles. 



Liverpool Geological Society. 



. Literary & Philosophical Societ3\ 



London. — British Association for the Advancement of Science. 



. Chemical Society. 



. ' The Chemical News.' 



. 'The Colliery Guardian.' 



. ' The Geological Magazine.' 



. Geologists' Association. 



. Institution of Civil Engineers. 



. Institution of Mining Engineers. 



. Institution of Mining & Metallurgy-. 



. Institution of Water Engineers, 



. Iron & Steel Institute. 



. Linnean Society'. 



. 'The London, Edinburgh, & Dublin Philosophical Magazine.' 



. Mineralogical Society. 



. ' Nature.' 



. Palseontographical Society. 



. Prehistoric Society of East Anglia. 



. ' The Quarry.' 



. Royal Geographical Society. 



. Royal Institution. 



. Royal Meteorological Society'. 



. Royal Microscopical Society. 



. Royal Photographic Society. 



. Royal Society. 



. Royal Society of Arts. 



. ' The South-Eastern Naturalist ' (S.E, Union of Scientific Societies). 



. Victoria Institute. 



. ' Water.' 



. Zoological Society. 



Manchester Geological & Mining Society. 



. Literar}' & Philosophical Societj'. 



Melbourne (Victoria). — Australasian Institute of Mining Engineers. 



. Royal Society of A^ictoria. 



. ' The Victorian Naturalist.' 



Mexico. — Sociedad Cientifica ' Antonio Alzate.' 

 Moscow. — Societe Imperiale des Naturalistes. 



Newcastle-upon-Tj^ne. — North of England Institute of Mining & Mechanical 

 Engineers. 



. University of Durham Philosophical Society. 



New Haven (Conn.). — Academy of Arts & Sciences. 



. * The American Journal of Science.' 



New York. — Academy of Sciences. 



. American Institute of Mining Engineers. 



. ' Science.' 



Northampton. — Northamptonshire Natural History Society. 



Oporto. — Academia Polytecnica. [Coimbra.] 



Ottawa. — Royal Societj' of Canada. 



Perth. — Perthshire Society of Natural Science. 



Philadelphia. — Academy of Natural Sciences. 



