4 ADVERTISEMENTS. 
Mr. tennant, . I 
MINEEALOGIST BT APPOINTMENT TO HEE MAJESTY, 
149, STRAND, LONDON, W.C., 
Gives practical Instruction in MiTierftlogy and Geology. He can also supply 
elementary coUections of Minerals, Rocks, and Fossils on tlie following terms: — 
100 Smiill Specimens, in cabinet witli 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 twelve drawers ... 21 0 0 i 
More extensive collections, either to illustrate Mineralogy or Geology, at 50 to 100 I 
Guineas each, with every requisite to assist those Commencing the study of these i 
interesting branches of science, a knowledge of which affords so much pleasure to ] 
the traveller in all parts of the world. 
* A collection for Five Guineas, which will illusti-ate the recent works on Geology 
by Mm-chison, Bucklaud, Lyell, Mantell, FhiHips, Ansted, Page, and others, con- 
tains 200 specimens, in a mahogany cabinet with live 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, Hornblende, Augite, 
Asbestos, Felspar, Mica, Talc, Tourmaline, Calcareous Spar, Fluor, Selenite, Baryta, 
Stiontia, Cryolite, Salt, Siiljjlmr, Plilmbago, Bitumen, Jet, Amber, Coal, &c. 
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 
i'oUowing Metallic Ores are contained in the cabinet: Iron, Manganese, Lead, Tin, 
Zinc, Copper, ^bitimony, Silver, Gold, Platina, &c. 
ROCKS : — Granite, Gneiss, Mica-slate, Clay -slate, Porpliyry, Syenite, Serpentine, 
Sandstones, Limestones, Basalt, Lavas, &c. 
PALiliOZOIC FOSSILS, frotn the Llandeilo, Wenlock, Ludlow, Devonian, and 
C:irboniforous Rocks. 
SECONDARY FOSSILS, fi-om the Lias, Oolite, Wealden, and Cretaceous Groups. 
, TERTIARY FOSSILS, from the Woolwich, Baitou, and Brackleshara Beds, 
LoTidon Clay, Craj;-, &c. 
In the more expensive Collections some of the specimens are rare, and all more select. 
EXTENSIVE AND VALUABLE COLLECTION OF MINERALS. 
Mr. Tennaxt bought at the Stowe Sale the Duke of Buckingham's Collection 
of Minerals, which he has greatly enriched by a collection of Coloured Diamonds, 
Australian Gold, Malachite, and many other specimens of gi'eat value and interest. 
The Collection, consisting of 3,000 specimens, is in two cabinets, each containing thirty 
drawers, with a glass case on the top for large specimens, and is ofilercd at £2,000. 
Such a Collection is well adapted for any public Institution, or any gentleman 
inteitsted in mining pursuits or practical geology, as some of the specimens are 
liner than those in the British Museum. 
Models of Crystals in Glass and Wood to illustrate the section on Crystallo- 
graphy and Mineralogy in " Orr's Circle of the Sciences," by the Rev. Walter 
Mitchell, M.A., and" Professor Tennant, F.G.S. 
SIX DIAGRAMS OF THE EXTINCT ANIMALS, by B. W. Hawkins, 
F.L.S., F.G.S. , &c., adapted to Educational Puiiioses. Size of each diagram, 40 
by 29 inches, in double-tinted lithography. Price £1 10s. 
Catalogue of 2,000 of the most coumioii Fossils found in the British Isles, being 
a list of those in the Private Collection of J. TENNANT, F.G.S.; with a Ust of 
Geological Books, Majis, &c., to October, 1858. Price 2s. 
AIL the recent Works relating to Mineralogy, Geology, Conchology, Chemistry, 
and Botany; also Geological Maps, Models, Diagrams, Hammers, Blowpipes, 
Magnifying Glasses, Platina Spoons, Electrometer and Magnetic Needles, Glass-top 
Boxes, Brass and Steel Forceps, Acid Bottles, Microscopic Objects, &c., can I* 
sinii'lied to the Sludt'iit in the.'-c in(<'rc;-ttni; lnunclics of Science, by J. TENNANT, 
MiMiKAL(jo;ibi nv Afi'uim.mem io HtR Ma.JjBSTY, 149, Strand, London, W.C. 
Aiigunt, 18G0. 
