CXll 



NA TURE ' {July 3 1 , 1 879 



PROFESSOR HUGHES' AUDIOMETER. 



The only perfect measurer for testing the hearing power. Vide Dr. Richardson's Report to the Royal Society, 

 May 15, 1879 ; Medical Times and Gazette, May 24, 1879. 



SOLE AUTHORISED MAKERS, 



KROHNE & SESEMANN, 



8, DUKE STREKT, MANCHESTER SQUARE, LONDON, W. 



THE TELEPHONE COMPANY, LIMITED, 



36, COLEMAN STREET, LONDON, E.G. 



TESTIMONIALS. 



14S to 149, Tottenham Court Road, London, W., 14/A May, 1879 

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



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

 venience, conununicating 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 commuiucation 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, i%th April, 1879 

 Dear Sirs, — In reply to your inquiry of the 25th inst, I have the pleasure to inform you that the Telephones y/hich have 



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



The Telephone Company, 36, Cole?na?i Street, London, E. C. 



Application for Price Lists or fm-ther information to be made to the Manager. 



SIR JOHN LUBBOCK'S N EW BOOKS. 



SCIENTIFIC LECTURES, with Coloured Plate and numerous Illustrations. 8vo. 8^. 6d. 



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. 8vo. 8.. 6d. 



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

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

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

 Monuments — Egypt. 



MACMILLAN & CO., LONDON. 



In crown 8vo, price 3^. dd. 



A YEAR 



in a 



LANCASHIRE GARDEN. 



BY HENRY A. BRIGHT. 



" It is full of admirable suggestions for the practical gardener as to the choice and arrangements of his plants, but 

 it will also be read with interest in the arm-chair in town. It is the story of a year's gardening written by an 

 accomplished man, whose flowers tell him many stories and pleasant things not to be found in the nursery catalogue." 

 — Times. 



MACMILLAN AND CO., LONDON. 



friated ky R. Clay, Sons, and Tavlok, at 7 and S, Bread Street Hill, Queen Victoria Street, in the City of Londan, and publisked by 

 Macuillan and Co., at the Office, z| and 3*, Bedferd Street, Cereat Gardea.— Thvksoav, July 31, 1879. 



