MR. TENNANT, GEOLOGIST, 149, STRAND, LONDON, 

 W.C., has greatly improved his elementary Collections of Minerals, Rocks, and Fossils, 

 which are well suited for scientific Presents, and can be supplied on the following terms : — 



100 Small Specimens, in cahiiict \s itli three trays £2 2 0 



*200 Specimens, larger, in cabinet \\ it li five i rays 5 5 0 



300 Specimens, larger, in cabinet \\ i I h ci^l it (h-awers .... 1010 0 



400 Specimens, larger, in cabinet with I \\rl\ (' 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 conuiiencing 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 Buck- 

 land, Murchison, Lyell, Mantell, Anstcd, Page, and others, contains 200 Specimens, in a 

 Mahogany Cabinet, with five trays, comprising the following specimens, viz. : — 



MINERALS wliicli are eitlier the components of Rocks, or occasionally imbeddcMl in llicin : — Quartz, 

 Agate, Chalcedony, Jasper, Garnet, Zeolite, Hornblende, Augite, Asbestus, Felspar, .Mici, 'lulf, Topaz, 

 Tourmaline, Spinel, Calcareous Spar, Fluor, Seleuite, Baryta, Strontia, CryoUte, Salt, Sulphur, Plumbago, 

 Bitumen, Jet, Amlier, Coal, etc. 



NATIVE ]\IKTALS, or METALLIFEROUS MINERALS: these are found in masses, in beds, or in 

 veins, t\n(\ occ asionally in the beds of rivers. Specimens of the following Metallic Ores are contained in 

 the Cal.'iiicl : — IriMi, AI ani^anese, Lead, Tin, Zinc, Copper, Antimony, Silver, Gold, Platina, etc. 



EOCJ\ S :— ( ; 1 :iuil(', (Jueiss, Mica-slate, Clay-slate, Porphyry, Serpentine, Sandstones, Limestones, 

 Basalt, l.a\as, Clav, Conglomerate, etc. 



PALAEOZOIC FOSSILS, from the Llnndeilo, AVeiiloc-k, Ludlow, Devonian, and Carboniferous Rocks. 



S]':C()]\M)ARY FOSSILS, froju the Trias, Lias, Oolite, Wealden, and Cretaceous Groups. 



TERTIARY FOSSILS, from the Woolwich, J5artou, and Bracklesham Beds, London Clay, Crag, etc. 



In the more expensive Collections some ot the Specimens are rare, and aU more select. 



EXTENSIVE AND VALUABLE COLLECTION OE MINEEALS EOR SALE. 



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, Gold from Australia, 

 Canada, Wales, etc., and many other specimens of great value and interest. The Collection, 

 consisting of oOOO Specimens, is in two cabinets, each containing tliirty drawers, with a glass 

 case on the top for large specimens, price ^^2000. 



It is well adapted for any public Institution, or for any Gentleman taking an interest in 

 Mining pursuits or practical Geology. 



SOPWITH'S GEOLOGICAL MODELS, IN WOOD OP DIFEERENT COLOURS. 



Sold in Cases, bovmd and lettered to resemble large octas-o, qiuarto, or folio volumes. 



Set of Six Models, 3 ins. sq. £2 0 0 I Twelve Models, 3 ins. sq. £4 0 0 

 The same, 4 ins. sq. 2 10 0 j The same, 4 ins, sq. 5 0 0 



MODELS OP CRYSTALS IN GLASS AND WOOD. 



To illustrate the section on Crystallography and INIineralogy in " Orr's Circle of the Sciences," 

 by the Ecv. Walter Mitchell, M.A., and Professor Tennakt, F.E.G.S. 



WATERHOUSE HAWKINS'S MODELS OP EXTINCT ANIMALS. 



Scientific and other Institutions can be su])pli('il with INfr. WAXERTTorsi: 1Taavki>-s's Geo- 

 logical Eestorations of the Extinct Animals — rtcroiIactj//c, l(/i(<'}i(> lij,i. JL (/aiosauriis, 

 I'Jcfsiosanrns (two species), Ichthyosaurus, and Liahijrintliodoii, — seven models, reduced to a 

 scale of one inch to a foot, from those of the Crystal Palace. Price £5. 5s. Packing case, 

 8s. Od. extra. 



SIX DIAGRAMS OF THE EXTINCT ANIMALS, by W. B. Hawkins, F.L.S., etc., adapted for 

 Educational Purposes. Size of each Piagram, -10 byxU inches, in double-tinted Lithograph)'. Pi'ice £l,lOs. 



Jtist Fuhlished. A coloured Lithographic Print (size 34 inches by 28 inches) of W. 

 Hawkins's Eestoeation of Extinct Animals. Price 12s. 



Lately Tvhiished, a Catalogue of 2000 of the most common fossils foimd in the British Isles, 

 being a list of those in the private collection of J. Tennant, F.G.S. Price 28. 



All the recent Works relating to INIineralogy, Geologn-. Conchology, Chennstry. Zoology, and 

 Botany; also Guide Books, Scientific Portraitt;, Geological Majis, !^i()dels, Dingranis, Hammers, 

 Blo\\ pipes, ISIagnifving Glasses, Platina S])0(niR, Electrometer and ^lagiu'tic Needles, Glass-top 

 Boxes, Brass and Steel Forceps. Acid Bottles, Micr(>scopic Objects, etc.. can be sui)i)lied to the 

 Student in tliese ijiteresting l)ranches of Srii'iu'C, by JAM KS Th]NNA^.'r, ^1 ineralogist by 

 Ai)pointnu'nt to Her ]Majesty, 119, Strand, Loudon, "W.C. — Practical Instruction in Mineralogy 

 and Geology can be had. 



