ADVERTISEMENTS. 



MURRAY AND HEATH, 



43, PICCADILLY, LONDON, W., 



TO HER MAJESTY THE QUEEN, THE GOVERNMENT DEPARTMENTS, AND THE CHIEF 



SCIENTIFIC SOCIETIES. 



In the Course of Preparation, and will be ready for issue in a few days, 



MURRAY AND HEATH'S PHOTOGRAPHIC CATALOGUE, 



AND THEIR ANNUAL PAMPHLET ON NEW PROCESSES AND APPARATUS. 



SMARTT'S PHOTOGRAPHIC TENT. 



The most efficient, serviceable, and convenient Tent in use. For description, etc., see page 7 of Pamphlet. 



PONTING'S COLLODION. 



This Collodion has risen into very high repute, and is used by a vast number of Professional and Amateur Photographers. It is very 

 sensitive, and this quality it retains a considerable time. 



Murray and Heath, 43, Piccadilly, "W. 



Ji AMADIO'S STUDENTS' BOX OF MICROSCOPIC PREPARATIONS, 



Containing Six Dozen beautiful Specimens in poliphed Mahogany Box, fitted with racks, brass lock and key, etc., produced under 

 J. AMADIO'S imme(iate superintendence, specially adapted for the Student, price £3 18s. 6d. 



MICROSCOPIC PHOTOGRAPHIC NOVELTIES— NOW READY. 



Dr. Livingstone, Cardinal Wiseman, Charles Dickens, Albert Smith, Miss Amy Sedgwick, Ecce Homo, Paul preaching at Atheng, St. Paul's 

 Cathedral, Houses of Parliament, The £5 Bank Note, Smugglers Watching, Windsor Castle, Congratulation, Interior of Highland Home, 

 View of Dover, Sheep Washing, The Corsairs' Tale, The Death of Annanias, 2s. 6d, each, or post free for 33 stamps. 



Great Eastern. — Microscopic Photographs of the Great Eastern, post free on receipt of 32 Stamps. 



Microscopes from 10s. 6d. to 120 Guineas. 

 J. AMADIO'S IMPEOVED COMPOUND MICEOSCOPES, £2 12s. 6d.; Students, £3 13s. 6^. 



" Both these are from Amadio, of Throgmorton Street, and are excellent of their kind, the more expensive one especially." — Mouse' 

 hold Words, No. 345, 



J. AMADIO'S BOTANICAL MICEOSCOPE, 



Packed in Mahogany Case, with three Powers, Condenser, Pincers, and Two SHdes, will show the animalculain water, price 18». M. 

 The Field Newspaper, under the gardening department, gives the following valuable testimony : — " It is marvellously cheap, and will 

 do everything which the lover of nature can vrish it to accomplish, either at home or in the open air." — June 6, 1857. 



7, THROGMORTON STREET, I.0ND01T, E.C. 



Just Publisbcd, Second Edition, an Illustrated and Descriptive Catalogue, containing the names of 1500 Microscopic 



Objects. Post free for Six Stamps. 



ME. MACKIE'S NEW GEOLOGICAL WOEK. 



This day is published, crovni 8vo, Illustrated, price 5s., 



THE FIEST TEACES OF LIFE ON THE EAKTH; 



OB, 



THE EOSSILS OF THE BOTTOM EOCKS. 



BY S. J. MAOKIE, F.G.S., F.S,A., ETC., ETC. 



CONTENTS. 



THE NATUEE OF FOSSILS. 



VALUE OF FOSSILS. 



OEDEK OF THE K0CK8. 



WHAT WE KNOW OF THE EAETH'S CEUST. 



THE EOCK-STEATA — THEIE TEACHINGS, 

 EEMNANTS OF THE FIKST LANDS. 

 THE BOTTOM EOCKS. 

 FIEST TEACES OF LIFE. 



London : Groombkidge & Sons, Publishers, 5, Paternoster Eov. 



