4 



ADVERTISEMENTS. 



MR. TENNANT, 

 MINERALOGIST BY APPOINTMENT TO HER MAJESTY, 



149, STEAKD, LONDON, W.C., 



Gives practical Instruction in Mineralogy and Geology. He can also supply 

 elementary collections of Minerals, Rocks, and Fossils on the following terais : — 

 100 Small Specimens, in cabinet with three trays .....£220 

 *200 Specimens, larger, in cabinet with five trays ..... 5 5 0 

 300 Specimens, larger, in cabinet with eight drawers . . . 10 10 0 

 400 Specimens, larger, in cabinet with twelve drawers ... 21 0 0 

 More extensive collections, either to illustrate Mineralogy or Geology, at 50 to 100 

 Guineas each, with every requisite to assist those commencing the study of these 

 interesting branches of science, a knowledge of which affords so much pleasure to 

 the traveller in all parts of the world. 



* A collection for Five Guineas, which will illustrate the recent works on Geology 

 by Murchison, Buckland, Lyell, Mantell, Phillips, Ansted, Page, and others, con- 

 tains 200 specimens, in a mahogany cabinet with five trays, comprising 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, Calcareous Spar, Fluor, Selenite, Baryta, 

 Stiontia, Cryolite, Salt, Sulphur, Plumbago, Bitumen, Jet, Amber, Coal, &c. 



NATIVE METALS, or METALLIFEROUS MINERALS; these are found in 

 masses, in beds or in veins, and occasionally in the beds of rivers. Specimens of the 

 following Metallic Ores are contained in the cabinet: Iron, Manganese, Lead, Tin, 

 Zinc, Copper, Antimony, Silver, Gold, Platina, &c. 



ROCKS:— Granite, Gneiss, Mica-slate, Clay-slate, Porphyry, Syenite, Serpentine, 

 Sandstones, Limestones, Basalt, Lavas, &c. 



PALJEOZOIC FOSSILS, from the Llandeilo, Wenlock, Ludlow, Devonian, and 

 Carboniferous Rocks. 



SECONDARY FOSSILS, from the Lias, Oohte, Wealden, and Cretaceous Groups. 



TERTIARY FOSSILS, from the Woolwich, Barton, and Bracklesham Beds, 

 London Clay, Crag, &c. 



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



EXTENSIVE AND VALUABLE COLLECTION OF MINERALS. 



Mr. Tennant bought at the Stowe Sale the Duke of Buckingham's Collection 

 of Minerals, which he has greatly enriched by a collection of Coloured Diamonds, 

 Australian Gold, Malachite, and many other specimens of great value and interest. 

 The Collection, consisting of 3,000 specimens, is in two cabinets, each containing thirty 

 drawers, with a glass case on the top for large specimens, and is offered at £2,000. 



Such a Collection is well adapted for any public Institution, or any gentleman 

 interested in mining pursuits or practical geology, as some of the specimens are 

 finer than those in the British Museum. 



Models of Crystals in Glass and W ood to illustrate the section on Ciystallo- 

 graphy and Mineralogy in " Orr's Circle of the Sciences," by the Rev. Walter 

 Mitchell, M.A., and Professor Tennant, F.G.S. 



SIX DIAGRAMS OF THE EXTINCT ANIMALS, by B. W. Hawkins, 

 F.L.S., F.G.S., &c., adapted to Educational Purposes. Size of each diagram, 40 

 by 29 inches, in double-tinted lithography. Price £1 10s. 



Catalogue of 2,000 of the most common Fossils found in the British Isles, being 

 a list of those in the Private Collection of J. TENNANT, F.G.S. ; with a hst of 

 Geoioo-ical Books, Maps, &c., to October, 1858. Price 2s. 



All the recent Works relating to Mineralogy, Geology, Conchology, Chemistry, 

 ,'nid B()tany; also Geological Maps, Models, Diagrams, Hammers, Blowpipes, 

 Mnoiiifying Glasses, Platina Spoons, Electrometer and Magnetic Needles, Glass-top 

 r.oxi^p, B)-ass and Steel Forceps, Acid Bottles, Microscopic Objects, &c., can be 

 Mijij.lied to the Student in these interesting branches of Science, by J. TENNANT, 

 jMim:.kai.ogist by Appor^iT3IE^T to Her Majesty, 149, Strand, London, W.C. 



August, 1860. 



