GOVERNMENT SCHOOL OF MINES. 



DIRECTOR: 



SIR EOBERT IMPEY MURCHISON, D.G.L., M.A., F.R.S., &c. 



During the Session 1861-2, which will commence on tlie 7th of October, the following 

 COURSES of LECTURES and PRACTICAL DEMONSTRATIONS will be given :— 



1. Chemistry— By A. W. Hofmann, LL.D., F.R.S., &c. 



2. Metallurgy— By John Percy, M.A., F.R.S. 



3. Natural History— By T. H. Huxley, F.R.S. 



5. Mining° Sy S B F Warington W. Symth, M.A., F.R.S. 



6. Geology— By A. C. Ramsay, F.R.S. 



7. Applied Mechanics— By Robert Willis, M.A., F.R.S. 



8. Physics— By J. Tyndall, F.R.S. 



Instruction in Mechanical Drawing, by Mr Binns. 



The Fee for Students desirous of becoming Associates is 30Z. in one sum on entrance, 

 or two annual payments of 201., exclusive of the Laboratories. 



Pupils are received in the Royal College of Chemistry (the Laboratory of the School), 

 under the direction of Dr Hofmann, and in the Metallurgical Laboratory, under the 

 direction of Dr Percy. 



Tickets to separate Courses of Lectures are issued at 11. 10s. and 31. each. 



Officers in the Queen's Service, Her Majesty's Consuls, acting Mining Agents and 

 Managers, may obtain Tickets at reduced prices. 



Certificated Schoolmasters, Pupil-Teachers, and others engaged in Education, are also 

 admitted to the Lectures at reduced fees. 



His Royal Highness the Prince of Wales has granted two Exhibitions, and others have 

 also been established. 



For a Prospectus and information, apply at the Museum of Practical Geology, Jermyn 

 street, London. TRENHAM REEKS, Registrar. 



MINERALOGY.— KING'S COLLEGE, LONDON. 



PEOFESSOE TENNANT, F.G.S., 



will commence a COURSE of LECTURES on .MINERALOGY, with a view to facilitate 

 the Study of GEOLOGY, and of the Application of Mineral Substances in the Arts. 



The Lectures will begin on FRIDAY MORNING, OCTOBER 4th, at Nine o'clock. 

 They will be continued on each succeeding Wednesday and Friday, at the same hour. 

 Fee £2 2s. R. W. JELF, D.D., Principal. 



POLYTECHNIC INSTITUTION. 



THE INTERNATIONAL EXHIBITION OF 1862. 



The Directors are happy to announce that they have obtained from Messrs 

 Birngstingle and Co. (the Photographers appointed by her Majesty's Commissioners) 

 the exclusive right of Exhibiting, on the Polytechnic Disc, by the Electric or other Light, 

 Photographs showing the progress of the Building. Messrs Birxgstingle and Co. 

 delivered Six Pictures for Exhibition on Monday, the 16th September, at a Quarter-past 

 Four and Half-past Nine, and they will be shown by Parr's New Electric Lamp. 



Visitors to London can watch the development of this wonderful Building by 

 attending the Polytechnic, as the Pictures will be changed every month, and Exhibited 

 Daily at a Quarter-past Four and Half-past Nine. 



JOHN HENRY PEPPER, Hon. Director. 



S. BOWLES (late WINDSOR and Co.), 



Phial and Bottle Merchant, Dealer in Druggists' Sundries, &c. 



6 JAMES STREET, COVENT GARDEN, W. C. 



The Cheapest House in London for every description of Medical Glass of the best 



quality. Samples and Prices forwarded free on application. 



PHOTOGRAPHIC CHEMICALS, APPARATUS, & LENSES. 



COLLODIONS for Positive and Negative Pictures, highly sensitive and uniform in 

 action. CRYSTAL VARNISH, for protecting Negatives. Genuiue PAPIER SAXE. 

 Carefully-prepared ALBUMINIZED PAPERS. Brass-bound and other CAMERAS, 

 with all recent Improvements. Glass, Porcelain, and Guttapercha DISHES and 

 BATHS. Portrait and Landscape Lenses by ROSS, LEREBOURS, and VALLANT1N; 

 and every requisite for the practice of Photography. 



Wholesale Manufacturers of all Chemical Preparations of acknowledged purity. 



The Trade and Shippers supplied on best terms. 



Illustrative Catalogue free on application. 



