SYLLABUS OF LECTURES ON MINERALOGY, 



ADAPTED TO FACILITATE THE STUDY OF GEOLOGY AND OF MINEEAL 



SUBSTANCES USED IN THE ARTS, 

 Which will be given by J. TENNANT, F.G.S., Professor of Geological Mineralogy at 



King's College, London, on Wednesday and Friday Mornings from 9 to 10, and 



on Thursday Evenings from 8 to 9. 



The Course will commence with a description of the Physical and Chemical Characters, 

 of Minerals in general. 



Physical Characters.— Crystallization, Cleavage, Fracture, Frangibility, Hard- 

 ness, Lustre, Colour, Flexibility, Double Refraction, Touch, Taste, Odour, Streak,. 

 Powder, Adhesion to the Tongue, Magnetic and Electric Properties, Phosphorescence, 

 Specific Gravity. 



Chemical Characters.— Use of the Blowpipe, Action of Acids, etc. 



The principal simple Minerals will be next separately considered, and the readiest 

 mode of distinguishing them described. The following is the order adopted :— 



A. Earthy Minerals. — Rock-Crystal, Amethyst, Cairngorm, Avanturine, Cat's-eye, 

 Opal, Chalcedony, Flint, Onyx, Agate, Carnelian, Heliotrope, Jasper, Hornstone, Chert,. 

 Garnet, Idocrase, Axinite, Epidote, Augite, Hornblende, Asbestos, Tremolite, Actinolite,. 

 Felspars, Zeolites, Mica, Talc, Chlorite, Calcite, Fluor, Selenite, Baryta, Strontia, Salt, 

 Cryolite, etc. 



B. Combustible Minerals. — Sulphur, Bitumen, Coal, Jet, Amber, etc. 



C. Minerals used in Jewelry. — Diamond ; Coloured varieties of Corundum — Sapphire,. 

 Ruby, Topaz— called Oriental Stones : Spinel, Turquoise, Topaz, Emerald, Beryl, 

 Hyacinth, Tourmaline, Lapis-lazuli, etc. 



D. The Metalliferous Minerals will be fully described in the Practical Course. 



The Course of Instruction will include 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, etc. 



The above Lectures commence in October and end at Christmas. 



To be followed by Lectures on Rocks and Metallic Minerals. 



The Lectures delivered on the subject of Geological Mineralogy are intended to have 

 especial reference to the important practical applications of that science to Engineering, 

 Mining, Architecture, and Agriculture. The Granites, Syenites, Porphyries, Green- 

 stones, Clays, etc., will be described, and the Minerals peculiar to each noticed. 



The application of Geology to pursuits connected with Mining-operations for Coal, 

 Iron, Copper, Tin, Silver, Gold, Mercury, Antimony, Zinc, Cobalt, etc., will be specially 

 considered. The Student is directed how to proceed in the examination of a new country, 

 how to collect and record his observations, and to mark his specimens, in order to render 

 them useful to more experienced geologists at home. 



In order more fully to exemplify the applications of the Science, Mr. Tennant accom- 

 panies his Classes to various Museums in London, including the Museum of Practical 

 Geology and the British Museum ; also on excursions into the country, in which the 

 actual field-work of the Geologist is explained and illustrated. 



The above Lectures commence in January and end at Easter. 



IN THE CHRISTMAS HOLIDAYS 

 Six Elementary Lectnres on Geology and Palaeontology 



Will be delivered by the Professor at his Residence, 149, Strand. 



Descriptive Geology. — Classification of Rocks into Aqueous, Volcanic, Plutonic, 

 and Metamorphic. 



Mineral Composition of Strata. — Arenaceous, Argillaceous, Calcareous. — Chronological 

 Classification of Sedimentary Rocks, with descriptions of the principal Fossils belonging 

 to each great deposit. 



Tertiary, or Cainozoic Series. — Cave Deposits, Crag, Isle of Wight, and Bagshot 

 series, London Clay, Woolwich beds. 



Secondary, or Mesozoic Series. — Cretaceous, Wealden, Oolitic (Upper, Middle, 

 and Lower), Triassic Groups. 



Primary, or Paljeozoic Series. — Permian, Carboniferous, Devonian, Silurian, and 

 Cambrian Groups. 



The mode of Collecting, Cleaning, and Arranging Fossils, Minerals, and Rock- 

 specimens will be described. 



PRIVATE INSTRUCTION on the above subjects is also given at 149, Strand, W.C., 

 by Professor Tennant. 



