p EOLOGY.— KING^S COLLEGE, LONDON.— PROFESSOR 



vX TENiSTANT, F.G.S., commenced a course of Lectures on Geology, on Friday morning, 

 January 24, at Nine o'clock. Thev will be continued on each succeeding "Wednesday and 

 Friday "at tlie same hour. Fee £2. 12s. Gd. 



E. W. JELF, D.D., Peixcipal. 



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

 "W.C., has greatly improved liis 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 wdth five trays 6 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, cither to illustrate Mineralogy or Geology, at .50 to 100 Guineas 

 each, with every rfquisitc to assist those comuioncing the study of these interesting branches 

 of science, a kntjv.iedge of which affords so much pleasure to the traveller in all paits of the 

 world. 



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

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

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



MINERALS whicb are either the components of Eocks, or occasionally imbedded in them: — Quartz, 

 Agate, Chalcedony, Jasper, Garnet, ZeoUte, Hornhlende, Augite, Asbestus, Felspar, Mica, Talc, Topaz, 

 Tourmahne, Spinel, Calcareous Spar, Fluur, Selenite, Baryta, Strontia, CryoUte, Salt, Sulphur, Plumbago, 

 Bitumen, Jet, Amber, Coal, etc. 



NATIYE METALS, or METALLIFEROUS MINERALS: these are found in masses, in beds, or in 

 voins, and occasionally in the h^ l^ of rivers. Specimens of the following Metallic Ores are contained in 

 the Cabinet : — Iron, . i , - Lead, Tin, Zinc, Copper, Antimony, Silver, Gold, Platina, etc. 



ROCKS :— Granite. ' - a-slate. Clay-slate, Porphyry, Serpentine, Sandstones, Limestones, 



Basalt, Lavas, Clav, C _ '.etc. 



PALAEOZOIC rO.^SiLS, tr nn the L1:mi 1 . V,' n^ock, Ludlow, Devonian, and Carboniferous Rocks. 



SECONDARY FOSSILS, from the T. lite, Wealden, and Cretaceous Groups. 



TERTIARY FOSSILS, from the AVc ., and Bracklesham Beds, London Cay, Crag, etc. 



In the more expensive Collections some ot lin- .-i.t cunens are rare, and all more select. 



EXTENSIVE AND VALUABLE COLLECTION OE MINERALS FOR SALE. 



Me. 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 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 taking an interest in 

 Mining pursuits or practical Geology. 



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



Sold in Cases, bound and letterea to resemble large octavo, quarto, or foho volumes. 



Set of Six Models, .3 ins. sq. £2 0 0 I Twelve Models, 3 ins. sq. £400 

 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 Crystallogi'aphy and Mineralogy in " Orr's Circle of the Sciences,"' 

 by the Eev. Walter Mitchell, M.A., and Peofessoe Te>->'a]s't, F.R.G.S. 



WATERHOUSE HAWKINS'S MODELS OP EXTINCT ANIMALS. 



Scientific and other Institutions can be supplied with Mr. WATEEHorsE Hawkins's Geo- 

 logical Hestoeations of the Exti>'CT Aximals — Fterodactyle, Ifjuanodon. 2Icgalosauru$. 

 Plesiosaurus (two species), Iclithyusaurus, and Lahyrinthodon, — seven models, reduced tu 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. Hawkixs, F.L.S., etc., adapted for 

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



Just Published. A coloured Lithographic Print (size 3-i inches by 28 inches) of W. 

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



Lateli/ Puhlishcd, a Catalogue of 2000 of the most common fossils found in the British Isles, 

 being a list of those in the private collection of J. Ten n ant, F.G.S. Price 2s. 



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

 Botany; also Guide Books, Sciontitic Portraits' Geological Maps. Models, Diacrrams, HamUit-rs, 

 Blowj)i])es, Magnifying Glasses, Platina Sjxions. Electrometer and Magnetic ^'eedles, Glass-top 

 Boxes, Brass and Steel Forceps, Acid Bottles, Microscopic Objects, etc.. can be supplied to the 

 Student in these interesting branches of Science, by JAMES Tr.NXA>T. Miuerahigist by 

 Appointment to Her Majesty, l-iO, Strand, London, W.C. — Practical Instruction in Mineralogy 

 and Geology can be had. 



