Oct, 23, 1879] 



NATURE 



CCXI 



THE TELEPHONE COMPANY, LIMITED. 



36/ COLEMAN STREET, LONDON, E.G. 



TESTIMONIALS. 



14S to 149, TottmJiam Court Road, London, W., \^h May, 1879 

 To the Telephone Company, Limited, 36, Coleman Street, £.C. 



Dear Sirs, — You will be pleased to hear that the forty Telephones you supplied answer admirably, and are of great con- 

 venience, communicating as they do in some cases with our workshops a mile away. 



The simplicity and ease with which they work, being able to be used by any one, and the great advantage over the Telegraph 

 system in rapid communication and recognition of the voice, must create a great demand for Telephones everywhere. — We remain, 

 dear Sirs, yours faithfully, (Signed) J. MAPLE & Co. 



Midland Railway Telegraph Department, Superintendent's Office, Derby, 2%th April, 1879 



Dear Sirs, — In reply to your inquiry of the 25th inst, 1 have the pleasure to inform you that the Telephones which have 

 been erected on the Midland Railway are working very satisfactorily. — Yours faithfully, (Signed) W. LANGDON 



The Telephone Company, 36, Coleman Street, London, E. C. 



Application for Price Lists or further information to be made to the Manager. 



OROIDE GOLD JEWELLERY. 



(REGISTERED.) 



(REGISTERED.> 



The only Perfect Substitute for 18-Carat Gold. 



ILLUSTRATED PRICE-LISTS POST-FREE. 

 MAGNETIC COMPASS CHARMS, 



For Appendage.'! to Watch-Chains, combining a reliable Compass, Magnifier, and Burning-glass; 

 best quality, and in fine geld patterns, Bs. 6c/. and los. dd. Free per registered post. 



WATCHES. 



The Cases of these are very handsome and in exact representation of those cf the best-made i8- 



carat Watches; the movements are thoroughly reliable, and constructed to perform for at least 



twenty-five years. Open face, from zif. Hunters, from 30^-. Per registered post, Caf. extra. 



ALBERT CHAINS, 



Perfect in finish, and embracing all the best i8-carat gold designs, los. 6(/. ; smaller patterns, 5^-. 



and 7J. 6^. Post-free. 



P.O.O. payable at Exhtbition Road, South Kensington. 



C. C. ROWE, 88, BROMPTON ROAD, LONDON. 



Ready this day, price 2IJ., 



STUDIES ON FERMENTATION. 



The Diseases of Beer : their Causes and the Means of Preventing them. 



BY L. PASTEUR. 



A Translation of "fitudes Sur la Bifere," with Notes, Illustrations, &c. By F. FAULKNER and D. C. ROBB, B.A. 8vo. 



MACMILLAN AND C0„ LONDON. 



W. LADD 8c CO., 



SCIENTIFIC INSTRUMENT MANUFACTURERS 



(By Appointment to the Royal Institution of Great Britain), 



II AND 12, BEAK STREET, REGENT STREET, W. 



IMPROVED HOLTZ ELECTRICAL MACHINES, with 4 to 24 PL-ites. Immediately available in any condition of the atmosphere. 



LADDS DYNAMO-MAGNETO MACHINE and GRAMME'S MAGNETO-ELECTRIC MACHINE for Laboratory use. 



Physical Apparatus of every Description. 

 ILLUSTRATED CATALOGUE, SIXPENCE. 



SIR JOHN LUBBOCK'S NEW BOOKS. 



SCIENTIFIC LECTURES, with Coloured Plate and numerous Illustrations. 8vo. 8.f. 6</. 



CONTENTS. 

 I. — On Flowers and Insects. 

 II. — On Plants and Insects, 

 III.— On the Habits of Ants. 

 IV. — ,, ,, (continued). 



V. — Introduction to the Study of Prehistoric Archaeology. 

 VI. — Address to the Wiltshire Archaeological and Natural History Society, 



ADDRESSES, POLITICAL AND EDUCATIONAL. Svo. 8j. 6</. 



Contents.— On the Imperial Policy of Great Britain— On the B«nk Act of 1844— On the Present System of Public School 

 Education, 1876 — On our Present System of Elementary Education — On the Income Tax — On the National 

 Debt— On the Declaration of Paris — Marine Insurances — On the Preservation of our Ancient National 

 Monuments — Egypt. . ^ ; 



MACMILLAN & CO., LONDON, 



