MR. TENNANT, GEOLOGIST, 140, STRAND, LONDON, 

 W.C., has greatly improved his elementary Collections of Minerals, Il^)cks, and Fossils, 

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



100 Small Specimens, in cabinet with three trays £2 2 0 



*200 Specimens, larger, in cabinet with live trays 5 5 0 



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



400 Specimens, larger, in cabinet with twelve drawers . . . . 121 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 mucli pleasure to the traveller in all jjuits of the 

 world. 



* A Collection for Five Guineas, which will illustrate the recent works on Gef)logy by Buck- 

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

 Mahogany Cabuiet, 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, Hornl)lende, Augite, Afi1)estus, Fel8])ar, Mica, Talc, Topaz 

 Tourmaline, Spinel, Calcareous Spar, Fluor, Selenite, Baryta, Strontia, Cryolite, Salt, Sulphur, Plumbago, 

 Bitumen, Jet, Amber, Coal, etc. 



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, etc. 



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

 Basalt, Lavas, Clay, Conglomerate, etc. 



PALEOZOIC FOSSILS, from the Llaudeilo, "Wenlock, Ludlow, Devonian, and Carboniferous Rocks. 



SECONDARY FOSSILS, from the Trias, Lias, Oolite, Wealden, and Cretaceous Groups. 



TERTIARY FOSSILS, from the Woolwich, Barton, and Bracklesham Beds, London Ciay, Crag, etc. 



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



EXTENSIVE AND VALUABLE COLLECTION OF MINERALS FOR 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 3000 Specimens, is in two cabinets, each containing thirty di-awcrs, with a glass 

 case on the top for large specimens, price i:;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 OF DIFFERENT COLOURS. 



Sold in Cases, bound and lettered to resemble large octavo, quarto, or folio volumes. 



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

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



MODELS OF CRYSTALS IN GLASS AND WOOD. 



To illustrate the section on Crystallogra])hv and Mineralogy in ' Orr's Circle of the Sciences/ 

 by the Kev. Walter Mitchell, M.A., and Professor Tennant, F.R.G.S. 



WATERHOUSE HAWKINS'S MODELS OF EXTINCT ANIMALS. 



Scientific and other Institutions can bo supplied with Mr. Waterhouse IIaavkixs's Geo- 

 logical Restorations of the Extinct Animals — I'tcrodacti/Je, Iguanodon, 3J ((lalosanvxis, 

 PIcsiosaiirus {U\o species), IcJitJii/osaitrKS, and Lahijvintliodon, — seven models, reduced to a 

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

 8s. 6d. extra. 



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

 Educational Purposes. Size of each Diagram, 40 by 29 inches, in double-tinted Lithography. Price £1. IDs. 



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

 Hawkins's Restoration or Extinct Animals. Price 12s. 



Lateli/ Pvhiished, 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. Pi'icc 28. 



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

 Botan;^' ; also Guide Books, Scientific Portraits, Geological Maps, IModels. Diagrams. Ilannners, 

 Blowpipes, Magnifying Glasses, Platina Sjjoons, Electrometer and Magnetic Isi'cillcs, (ilass-top 

 Boxes, Brass and Steel Forc( ps. Acid Bottles, Microscopic Objects, etc., can be supplieil to the 

 Student in these interesting brancbes of Science, bj JA]\1ES TEIS'NA^'T, Mineralogist by 

 Appointment to II er IVIajesty, 119, Strand, Loudon, W .C. — Practical Instruction in Mineralogy 

 and Geology can bo had. 



