﻿private Instruction in Mineralogy and Geology is given by Professor Ten- 



x nant, F.G.S., at his residence, 149 Strand, London, W.C. 



The Course on Mineralogy commences with a description of the Physical and Chemical 

 characters of Minerals in general, and includes a minute description of all the substances 

 entering into the composition of Rocks, and of those Minerals which are also used in the 

 Arts ; illustrated by an extensive collection of characteristic specimens, and diagrams of 

 the principal crystalline forms, &c. The lessons on Geology are illustrated by a large 

 series of Fossils. 



The Students are accompanied by the Professor to the Museum of Practical Geology, 

 the British Museum, and other public institutions, and also on excursions into the country. 



SOPWITH'S GEOLOGICAL MODELS IN WOOD. 



To illustrate the nature of Stratification ; of Valleys of Denudation ; Succession of Coal- 

 seams in the Newcastle Coal-field; Strata of adjacent Lead-mine districts ; the effects pro- 

 duced by Faults or Dislocations ; Intersections of Mineral Veins, &c. ; accompanied with a 

 letterpress description, which can be had separately, price Is. 6d., by T. Sopwith, C.E. &c. 



Sold in Case, bound and lettered to resemble a large folio volume. 

 Twelve Models, 4 inches square £5 



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. Tennant, F.G.S. Price 2s. 



All the recent Works relating to Mineralogy, Geology, Conchology, and Chemistry ; also 

 Geological Maps, Models, Diagrams, Hammers, Blowpipes, Magnifying- Glasses, Platina 

 Spoons, Electrometer and Magnetic Needle, Glass-top Boxes, Microscopic Objects, Forceps, 

 Acid Bottles, &c, can be supplied to the Student in these branches of Science. 



FOR SALE.— TWO CABINETS, measuring 9 feet 3 inches long, 2 feet 4 inches wide, 

 and 3 feet 10 inches high ; each containing 45 drawers, with a Glass Case on the top of 

 each Cabinet, 4 feet 11 inches high, and 15 inches from back to front. One Cabinet is filled 

 with 2600 Minerals, the other with 3400 Fossils. 



The Collection consists of six thousand specimens, many very select. The first Gold 

 Nugget received from Australia, which was exhibited in the Exhibition of 1851, is in 

 the Collection ; it cost £37, and contains about 8 ounces of gold : also a fine series of 

 Diamonds, illustrating crystalline form and colour, from India, Brazil, South Africa, and 

 Australia. The specimens, have been used to illustrate the Lectures on Mineralogy and 

 Geology at King's College, London, and at the Eoyal Military Academy, Woolwich. Price 



THREE THOUSAND GUINEAS. 



Any person wishing to become practically acquainted with the interesting and important 

 study of MINERALOGY and GEOLOGY will find this a good opportunity to obtain an 

 instructive and valuable Museum, the specimens having been collected with care and at 

 great expense during the last thirty years. 



Elementary Geological Collections at 2, 5, 10, 20, 50, to 100 guineas each, and 



every requisite to assist those commencing the study of this interesting branch of Science, 

 a knowledge of which affords so much pleasure to the traveller in all parts of the world. 



A collection for Five Guineas, to illustrate the recent works on Geology, by Ansted, 

 Buckland, Lyell, Mantell, Murchison, Page, Phillips, and others, contains 200 srie ^". 

 in a plain Mahogany Cabinet, with five 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, Olivine, Hyacinth, Spinel, Corundum, Tourmaline, Calcite, Fluor, 

 Selenite, Baryta, Strontia, Salt, Sulphur, Plumbago, Bitumen, &c. 



Native Metals, or Metalliferous Minerals ; these are found in masses or beds, in 

 veins, and occasionally in the beds of rivers. Specimens of the following Metallic Ores are 

 put in the Cabinet : — Iron, Manganese, Lead, Tin, Zinc, Copper, Antimony, Silver, Gold, 

 Platina, Mrcury, Titanium, &c. 



Rocks : Granite, Gneiss, Mica-slate, Clay-slate, Porphyry, Serpentine, Sandstones, Lime- 

 stones, Basalt, Lavas, &c. 



Pal/EOzoic Fossils from the Cambrian, Silurian, Devonian, Carboniferous, and Permian 

 Rocks. 



Secondary Fossils from the Rhastic, Lias, Oolite, Wealden, and Cretaceous Groups. 



Tertiary Fossils from the Plastic Clay, London Clay, Crag, &c. 



In the more expensive collections some of the specimens are rare, and all more select. 



JAMES TENNANT, Mineralogist (by appointment) to Her Majesty, 

 149 Strand, London, W.C. April 1871. 



