﻿GEOLOGICAL EXCURSION.— Professor Tennant will accompany his Students 

 on Wednesday next, June 2, to Maidstone to examine the Wealden, Greensand, Gault, and 

 Chalk of the district, under the direction of Mr. Bensted. Professor Tennant will he glad 

 to see any former Student. 



GEOGRAPHERS and TOURISTS derive additional pleasure in their rambles 

 by being acquainted with Minerals, Eocks, and Fossils. Mr. TENTVAIMT, Geolo- 

 gist, 149 Strand, London, has had thirty years' experience in giving PRACTICAL 

 ENSTRUCTTON to Ladies and Gentlemen ; and from his extensive collection, comprising 

 many thousand specimens, persons are enabled in a dozen or twenty lessons to acquire 

 sufficient knowledge to identify all the ordinary components of crystalline and volcanic 

 rocks, and most of the minerals and metals used in the Arts. 



TO GEOLOGISTS AND MINERALOGISTS. For Sale. 



Two handsome 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 

 Minerals, the other with Fossils. 



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

 study' of Mineralogy or Geology, or both, will find this a good opportunity to obtain an 

 instructive and valuable Museum. 



The Collection contains upwards of three thousand specimens, many very select. The first 

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

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

 Coloured Diamonds, illustrating crystalline form and colour. The specimens have been fre- 

 quently used to illustrate the Lectures on Mineralogy and Geology at King's College, and 

 at the Roval Military Academy, Woolwich*. Price 



THREE THOUSAND GUINEAS, 



Mr. Tennant has other Collections, at one thousand, five hundred, one hundred, down to 

 Students' Collections at fifty, twenty, ten, five, and two guineas each. 



* Mr. Tennant held the appointment of Lecturer on Geology and Mineralogy at Wool- 

 wich for seventeen years; the Lectures were discontinued in December 1867, Lectures on 

 Military History being substituted. 



Mr. Tennant is commissioned to sell several highly interesting Collections, viz. the ex- 

 tensive Collection of Minerals, Rocks, and Fossils collected by the late Lord Farnham ; 

 a Cabinet of Precious Stones and Pearls, and several others. Particulars can be had at 149 

 Strand. 



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., byT. 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. 



A descriptive List of Flint Implements found at St. Mary Bourne ; with Illustrations of 

 the principal types. By Joseph Stevens, Memb. Roy. Coll. Physicians, Lond. &c. 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, Brass 

 and Steel Forceps, Acid Bottles, &c, can be supplied to the Student in these interesting 

 branches of Science. 



MODEL of the first GOLD NUGGET received from Australia in 1851. The 

 original is in the possession of J. Tennant, Mineralogist to Her Majesty, 

 and contains about Eight Ounces of Gold. Price of the Model 3s. 6d. } with glass- 

 topped box to hold it, Is. Gd., — together, 5s. 



Model of the " Welcome " Gold Nugget, being the largest brought to England 

 from Australia : it contained Gold to the value of £8,376. Price of the Model £3 3s. 



JAMES TENNANT, Mineralogist to Her Majesty, 149 Strand, W.G. 

 May 31, 1869. 



