MK. TENNANT, GEOLOGIST, 149, STRAND, LONDON, 

 W.C., has gTcally iiiipivjvod his elementary Collections of Minerals, Eocks, and Fossils, 

 which are well suited for scioulific 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 five trays 5 6 0 



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



400 Specimens, larger, in cabinet with twelve drawers .... 21 0 0 



Move oxicnsive Collections, either to illiisii-nlc .M inci-nlo^ry ,,)- G('i,]i><j;x, at 50 to 100 Guineas 

 each, with fNcry requisite to assist those coininrnclnL^ llic sliidvof I In .s(! interesting branches 

 of science, a knowledge of which nll'ords so nuicii pleasure to tlie traveller in all parts of the 

 world. 



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

 land, Murchison, Lyell, Mantell, Ansted, Page, and olhci-s, cdnfains 200 Speciniens, in a 

 Mahogany Cabinet, with five trays, comprising the follow iwj; >[>(■( iniens, viz. : — 



MINEEALS which are either the componcnis of KocKs, or occasionally imbedded in them :— Quartz, 

 Agate, Clialeedony, Jaspei-, Garnet, Zeolite, II ornhlcnde, Auj^ite, Asbestus, Felspar, Mica, Talc, Topaz, 

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

 Bitimien, Jet, Amber, Coal, etc. 



NATIVE MiSTALS, or METALLirEIiOUS MINEEALS: these are found in masses, in beds, or in 

 veins, and occasionally in (he l)eds of rivers. Specimens of the foUowinff MetaUic Ores are contained in 

 the C:il)iiiel :— lion, Manganese, Lead, Tin, Zinc, Copper, Antimony, Silver, Grold, Platina, etc. 



EOC'K'S : — <) r:inite. Gneiss, Mica-slate, Clay-slate, Porphyry, Serpentine, Sandstones, Limestones, 

 Basalt, Lavas, Clay, ConKlomerale, etc. 



PALil^OZ01C FOSSILS, from Ihe Lhuideilo, Wcnlock, Ludlovr, Devonian, and Carboniferous Eocks. 



SECONDAKY FOSSJ LS, from tlie Trias, Lias, Oolite, Weaklen, and Cretaceous Groups. 



TEETIAEY FOSSILS, from the Woolwicli, J3arton, and Bracklcsham Beds, London Ciay, Crag, etc. 



In the more expensive Collections some ot the Specimens arc rare, and all more select. 



EXTENSIVE AND VALUABLE COLLECTION OF MINERALS FOR SALE. 



Mr. Tennant bought at the Sfowe Sale the Duke of Buckingham's Collection of Minerals, 

 vrhich he lias greatly enriched by a Colli'dion of Coloui'cd Diamonds, Gold from Australia, 

 Canada, Wales, etc., and many olhcr six't'iinens 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 any public Institution, or for any Gentleman taking an interest in 

 Mining pvirsuits or practical Geology. 



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



S.'ld in Cases, bound and leltered to resemble large octavo, quarto, or folio volumes. 



Set of Six Models, 3 ins. sq. £2 0 0 1 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 in ' Orr's Circle of the Sciences.' 

 by the Eev. Walteii Mitchell, M.A., and Pkofessor Tennant, F.R.G.S. 



WATERHOUSE HAWKINS'S MODELS OF EXTINCT ANIMALS. 



Scientific and other Institvitions can be supplied with Mr. "Waterhouse Hawkins's Geo- 

 logical Restorations or the Extinct Animals — IHcrodacti/l c, Ignanodon, Megalosaurus, 

 Flesiosaums (two species), Iclithyosaurtts, and Lahijrinthodon, — seven models, reduced to a 

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

 8s. Gd. 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 Lithogi-aphy. Price £1. 10s. 



Just Fiihlishcd. A coloured Lithofrraphic Print (sizo ,i4 inches by 28 inches) of "\V. 

 Hawki3ss's Restoration of Extinct Animals. I'lirr l-2s. 



Latch/ Tnhlishcd, a Catalogue of 2000 of the most common fossils found in the British Isles, 

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



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

 Botany; also Guide Books. Scientific Portraits, Geological Maps, Models, Diagnuns, Hammers, 

 Blowpipes, Magnifying Glasses, Platina Spoons, Electrometer and Magnetic Needles, Glass-top 

 Boxes, Brass and Steel Forcep.s, Acid Bottles, Microscopic Objects, etc.. can be su).]dicd to the 

 Student in these interesting branches of Science, bv JAMES TENIsATs'T, ^Mimralogist by 

 Appointment to Uer Majesty, l li), Strand, London, W.C. — Practical Instruction in Mineralogy 

 and Geology can be had. 



