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

 W.C., has greatly improved liis elementary Collections of Minerals, Efjcks, and Fossils, 

 ■which are well suited lor seientitic Presents, and can be supplied on the followinf^ terms : — 



100 Small Specimens, in cabinet with 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 tweh e drawers . . . . 21 0 0 



More extensive Collections, cither 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 part8 of the 

 world. 



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

 land, Murchison, Lyell, Manlell, 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 Eocks, or occasionally imbedded in them : — Quartz, 

 Agate, Chalcedony, Jasper, Garnet, Zeohte, Hornblende, Aiigite, Asljestus, Felspar, Mica, Talc, Topaz, 

 Tourmaline, Spinel, Calcareous Spar, Fluor, Seleuite, Baryta, Strontia, Cryohte, 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 followiufi; Alc^lallic Ores are contained in 

 the Cabinet : — Iron, Manganese, Lead, Tin, Zinc, Copper, Antimony, Silver, Gold, Plalina, etc. 



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

 Basalt, Lavas, Clay, Con^ilonuTato, etc. 



PAL^^OZOIC FOSSILS, iVom the Llandeilo, Wenlock, Ludlow, Devonian, and Carboniferous Rocks. 



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



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



In the more expensive Collections some ot the Specimens are rare, and all 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 tliirty drawers, with a glass 

 case on the top for large si)eeimens, price £2000. 



It is well adapted for any public Institution, or for any Gentleman takmg 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. £2 0 0 I Twelve Models, 3 ins. sq. £400 

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



MODELS OF CRYSTALS IN GLASS AND WOOD. 



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

 by the Eev. Walteii Mitchell, i\I.A., aiid Phofessok Tennant, F.K.G.S. 



WATERHOUSE HAWKINS'S MODELS OF EXTINCT ANIMALS. 



Scientific and other Institutions can be suj^plicd with Mr. "VVateehouse Hawkins's Geo- 

 logical Eestoeations of the Extinct Animals — Pterodactyl e,Iguanodon,MegaJosaHrus, 

 Plesiosa^irus (two species), Iclithyosanrtis, and Lahyriyithodon, — seven models, reduced to a 

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

 6s. Gd. extra. 



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

 Educational Purposes. Size of eachDiagi-am, 40 by 29 inches, in double-tinted Lithography. Price £1. 10s. 



JTust Published. A coloured Lithographic Print (size 34 inches by 28 inches) of AV. 

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



Lately Pvhlished, a Cataloging of 2000 of the most common fossils found in the Ih'iti.sh Isles, 

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



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

 Botany; also Guide ]3ooks, Seientilie Portraits, Geological Maps, IVlodels, Diagrams, Hammers, 

 Blowpipes, Magnifying Glasses, Platina ISjxions. Electrometer and ^Magnetic IS'eedh s. Glass-top 

 Boxes, J3rass and iSteel Forceps, Acid Bottles, ^Microscopic Objects, etc.. can be sup])lieil to tlie 

 Student in these interesting branches of Science, b^- JAMES TENIS'AIsT, Mineralogist by 

 Appointment to Her Majesty, 119, Strand, London, .C. — Practical Instruction in Mineralogy 

 and Geology can be had. 



