MR. J. TENNANT, GEOLOGIST, 



149, STRAND, LONDON, W.C., 



Gives practical Instraction in Mineralogy and Geology. He can also supply ele- 

 mentary collections of Minerals, Eocks, and Fossils on the following terms : — 

 100 Small Specimens, ia cabinet witli three trays .... £2 2 0 

 *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 

 nteresting branches of science, a knowledge of which afibrds so much pleasure 

 ^o the traveller in all parts of the world. 



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

 logy, by Murchison, Buckland, Lyell, Mantell, Phillips, Ansted, Page, and others, 

 contains 200 specimens, in a mahogany cabinet with five trays, viz. : — - 



MINERALS, which are either the components of Rocks, or occasionally imbed- 

 ded in them : — Quartz, Agate, Chalcedony, Jasper, Garnet, Zeolite, Hornblende, 

 Augite, Asbestos, Felspar, Mica, Talc, Tourmaline, Calcareous Spar, Fluor, Selenite, 

 Baryta, Strontia, Cryohte, 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. 



PALEOZOIC FOSSILS, from the Llarideilo, Wenlock, Ludlow, Devonian, and 

 Carboniferous Rocks. 



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

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

 London Clay, Crag, &c. 



In the more expensive Collections some of the specimens are rare, and aU 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, 

 Austrahan 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 ofiered at 

 £2,000. 



Such a Collection is well adapted for any pubHc 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 Wood to illustrate the section on Crystallo- 

 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-tmted hthogi-aphy. Price £1 10s. 



Catalogue of 2,000 of the most common Fossils found in the British Isles, b*eing 

 a hst of those in the Private CoUection of J. TENNANT, F.G.S. Price 2s. 



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

 and Botany; also Geological Maps, Models, Diagi'ams, Hammers, Blowpipes, 

 l^laguif^nng Glasses, Platina Spoons, Electrometer and Magnetic Needles, Glass-top 

 Boxes, Brass and Steel Forceps, Acid Bottles, Microscopic Objects, &c., can be 

 supplied to the Student in these mteresting branches of Science, by J. TENNANT, 

 MiKEKALOGiST BY APPOINTMENT TO Her Majesty, 149, Strand, London, W.C. 



