The Worshipful Company of Turners, London, 



OFFER THE FREEDOM OF THE COMPANY, 



together with their 



SILVER MEDAL AND THE FREEDOM OF THE CITY, 



to any one Workman or Apprentice for the best Workmanship in Hand Turning in 

 IYOR.Y, and the like Rewards for the best Workmanship in STONE (Porphyry, Granite, 

 Jasper, Agate, Serpentine, Marble, Spar, Stalagmite, Alabaster, Jet, Coal, Freestone, &c., 

 are examples of what may be used). 



Specimens to be delivered, by permission of the Lord Mayor, at the Mansion House, 

 in the City, between September 29th and October 3rd, 1873, and to remain the property of 

 the Artist. Inquiries as to the conditions of the Competition to be made of the Clerk of 

 the Company, WILLIAM MOORE SHIRREFF, Esq., 59 Mark Lane, E.C., or Professor 

 TENNANT, 149 Strand, London, W.C., by either of whom printed particulars will be 

 forwarded. 



Professor TENNANT'S LECTURES on MINERALOGY, applied to GEOLOGY 

 and the ARTS, at King s College, will be resumed on Wednesday morning, October 8th, 

 at nine o'clock, and the evening Lectures on Thursday the 9th. The public are admitted 

 on paying the College Fees. PRIVATE INSTRUCTION in GEOLOGY and 

 MINERALOGY can be had at 149 Strand. 



Mr. TENNANT expects shortly to have ready for sale a choice and extensive collection 

 of RECENT SHELLS, MINERALS, ROCKS, and FOSSILS, in a large and well-made 

 Cabinet of 108 Drawers, with Glass Bookcase on the top. The Cabinet was tie property 

 of the late Mrs. Ma we, and contains her private collection o:' Recent Shells and Minerals. 

 Amongst the latter are some Crystals of Gold, figured in Mawe s Travels in Brazil, and 

 supposed to be unique. The Bookcase contains many of the recent works on Geology by 

 Buckland, Lyell, Mantell, Murchison, Phillips, and others, and 25 Vols, of ihe publica- 

 tions of the Palieontographical Society, &c. 



Mr. TENNANT, having recently received many choice Specimens, has been able to 

 enrich several Collections previously advertised for 6ale. They can be had at all prices, 

 varying from Five Thousand Pounds to Two Guineas, and are suitable for the Nobleman's 

 gallery, the .Amateur's study, and for the working Scudent. 



Elementary Geological Collections at 2, 5, 10, 20, 50, to 100 guineas each, and 



every requisite to assist those commencing the study of this interesting branch of Science, 

 a knowledge of which affords so much pleasure to the traveller in all parts of the world. 



A collection for Five Guineas, to illustrate the recent works on Geology, by Ansted, 

 Buckland, Lyell, Mantell, Murchison, Page, Phillips, and others, contains 200 specimens, 

 in a plain Mahogany Cabinet, with five trays, containing the following specimens, viz. : — 



Minerals which are either the components of Rocks, or occasionally imbedded in 

 them — Quartz, Agate, Chalcedony, Jasper, Garnet, Zeolite, Hornblende, Augite, Asbestos, 

 Felspar, Mica, Talc, Tourmaline, Spinel, Zircon, Corundum, Lapis Lazuli, Calcite, Fluor, 

 Selenite, Baryta, Strontia, Salt, Sulphur, Plumbago, Bitumen, &c. 



Native Metals, or Metalliferous Minerals ; these are found in masses or beds, in 

 veins, and occasionally in the beds of rivers. Specimens of the following Metallic Ores are 

 put in the Cabinet : — Iron, Manganese, Lead, Tin, Zinc, Copper, Antimony, Silver, Gold, 

 Platina, Mercury, Titanium, &c. 



Rocks : Granite, Gneiss, Mica-slate, Clay-slate, Porphyry, Serpentine, Sandstones, Lime- 

 stones, Basalt, Lavas, &c. 



Paleozoic Foso±j.s from the Cambrian, Silurian, Devonian, Carboniferous, and Permian 

 Rocks. 



Secondary Fossils from the Rhaetic, Lias, Oolite, "Wealden, and Cretaceous Groups. 



Tertiary Fossils from the Plastic Clay, London Clay, Crag, &c. 



In the more expensive collections some of the specimens are rare, and all more select. 



JAMES TENNANT, Mineralogist (by appointment) to Her Majesty, 

 149 Strand, London, W.C. [October 1873. 



