PRACTICAL GEOLOGY.— KING^S COLLEGE, LONDON.— 



JT PliOFESSOE TEXXANT, F.G S., will give a course of Lectures on Geology, having 

 especial reference to the application of the Science to Engineering, Mining, Architecture, and 

 Agriculture. The Lectures will commence on Wednesday morning, April 30, at Nino o'clock. 

 Thev will be continued on each succeeding Friday and Wetbiesday at the same hour. Fee 

 £l.'lls.6d. E. W. JELF, D.D., Peixcipal. 



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 cabinet with three trays £2 2 0 



*200 Specimens, larger, in cabinet witli five trays 5 5 0 



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



400 Specimens, larger, in cabinet with twelve drawers . . . . 210 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 pai ts of the 

 world. 



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

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

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



MINERALS which are either the components of Keeks, or occasionally imbedded in them : — Quartz, 

 Agate, Chalcedony, Jasper, Garnet, Zeolite, Hornblende, Augite, Asbestus, Felspar, Jlica, Talc, Topaz, 

 Tourmaline, Spinel, Calcareous Spar, Fluor, Selenite, Baryta, Stron.tia, CryoUte, Salt, Sulphur, Plumbago, 

 Bitumen, Jet, Amber, Coal, etc. 



NATIVii METALS, or METALLIFEROUS MINEEALS : 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. 



KOCKS : — Granite, Gneiss, Jlica-slate, Clay-slate, Porphyry, Serpentine, Sandstones, Limestones, 

 Basalt, Lavas, Clay, Conglomerate, etc. 



PALAEOZOIC FOSSILS, from the Llandeilo, Wenlock, Ludlow, Devonian, and Carboniferous Rocks. 



SECOND ARY 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 all more select. 



EXTENSIVE AlH) VALUABLE COLLECTION OF MINERALS FOR SALE. 



Me. Texxant bought at the Stowe Sale the Duke of Buckingham's Collection of Minerals, 

 which he has greatly enriched by a Collection of Coloured Diixmonds, 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 tliirty drawers, with a glass 

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



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

 Mining pursuits or practical Geology. 



SOPWITH'S GEOLOGICAL MODELS, IN TTOOD OF DIFFERENT COLOURS. 



S^dd in Cases, bound and lettered to resemble large octavo, quarto, or foho 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 | The same, 4 ins. sq. 5 0 0 



MODELS OF CRYSTALS IN GLASS AND WOOD. 



To illustrate the section on Crystallography and Mineralogy iii " Orr's Circle of the Sciences,"' 

 by the Eev. Walter Mitchell, M.A., and Peofessoe Tennant, F.R.G.S. 



WATERHOUSE HAWKINS'S MODELS OF EXTINCT AITIMALS. 



Scientific and other Institutions can be supplied with. Mr. "W'ATERnousE Hawkins's Ge 

 LOGICAL Eestoeatioxs OF TUE ExTiN'CT ANIMALS — Fterodacttfh, Icjv.anodon, Merfalosctiirus. 

 PIcsiosaurus (two species), Ic/ithi/osanrus, and Labi/rintltodon, — seven models, reduced to a 

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

 8s. (Id. extra. 



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

 Educational Purposes. Size of each Diagram, -10 by 29 inches, in double-tinted Lithography. Price £1. h -. 



Just Published. A coloured Lithographic Print (size 34; inches by 28 inches) of W. 

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



Tjatclif PithJisJied, a Catalogue of 2000 of the most common fossils found in the British Kles, 

 being a list of those in the private collection of J. Tennant, F.G.S. Price 2-3. 



All the recent Works relating to ^Mineralogy. Geology, Conehology, Cheunstrv. Zoology, and 

 Botjiny; also Guide Books. Scientific Portraits' Geological Mai)s, Models, Diagmms, Hammers, 

 Blowpijies, Magnif>-ing Glasses, Platina Sj)oons, Electrometer and ^la-^netic Ncidles, Glass-top 

 Boxes. Brass and Steel Forceps, Acid Bottles, Microscojiic Objects, etc.. e;in be sui>p!ied to the 

 Student in these int»M-esting branches of Science, by JAMKS TENNANT, Miiu nilogist br 

 A])pointment to Her Majesty, 1 19, Strand. London, W.C. — Pruetieal ln>trucliou in Minerulog 

 and Geology can be had. 



