Ixxxviii 



NATURE 



\jfuly lo, 1879 



SOCIETY FOE PROMOTING CHRISTIAN KNOWLEDGE. 



NEW PUBLICATIONS. 



On the Origin of the Laws of Nature. By Sir Edmund 



BECKETT, Bart., LL.D., Q.C., F.R.A.S., Chancellor and Vicar- 

 General of York. Post 8vo, cloth boards. li. td. 



Manuals of Health : Health and Occupation. By- 



BENJAMIN WARD RICHARDSON, Ekj., F.R.S., M.D,, M.A., 

 &c. Fcap. 8vo, limp cloth, is. 



NATURAL HISTORY RAMBLES.— A Series of Popular Handbooks of the Fauna and 



Flora of the British Isles. 

 Lane and Field. By the Rev. J. G. Wood, M.A., 



Author of " Homes without Hands," &c. With numerous Woodcuts. 

 Fcap. 8vo, cloth boards. 2j. 6ii. 



The Woodlands. By M. C. Cooke, M.A., LL.D. With 



numerous Woodcuts. Fcap. 8vo, cloth boards. q.s. 6d. 



Lakes and Rivers. By C. O. Groom Napier, F.G.S., 



Author of " The Food, Use, and Beauty of British Birds," &c. With 

 numerous Woodcuts. Fcap. 8vo, cloth boards. 2s. 6d. 



Mountain and Moor. By J. E. Taylor, Esq., F.L.S., 



F.G.S., Editor of " Science T. jssip." With numerous Woodcuts. 

 Fcap. 8vo, cloth boards. 2s. 6./. 



Underground. By J. E. T.wlor, Esq., F.L.S., F.G.S., 



Kditur of "Science G^siip." With nu.nerjus Woodcuts. Fcap. 8vo, 

 cloth boards. 2s. 6d. 



The Sea-Shore. By Professor P. Martix Duncan, 



RI.B. (London), F.R.S. With num-rous Woodcuts. Fcap. 8vo, cloth 

 boards. 2s. 6d, 



London : yy, Great Queen Street, Lincoln's Inn Fields, W.C. ; 4, Royal Exchange, E.G. ; and 4S, Piccadilly, W. 



THE TELEPHONE COMPANY, LIMITED, 



36, COLEMAN STREET, LONDON, E.G. 



TESTIMONIALS. 



14S io 149, Tottenham Court Road, London, iV., 14/i May, 1879 

 Ti M^ Telephone Company, Limited, 36, Coleman Street, E.G. 



Dear Sirs, — Yon 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 advantaje 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 Tele^aph Department, Superintendent's Office, Derlr^', iStA April, 1879 

 Dear Sirs, — In reply to your inquiry of the 25th inst., I 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. LA\GD0N^:^ri 



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



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



MEDALS -PHILADELPHIA, 1876. MEDALS— PARIS, 1878. 



8ETH THOMAS CLOCK COMPANY, 



NEW YORK, CHICAGO, SAN FRANCISCO, and LONDON. 



MANUFACTURERS OF 



CALENDAR CLOCKS, REGULATORS for ASTRONOMICAL 



AND SCIENTIFIC PURPOSES, 



TURRET CLOCKS FOR LARGE BUILDINGS, 



AND 



HOUSE CLOCKS OF EVERY DESCRIPTION. 



Prices and Particulars from any respectable Watchmaker, or Wholesale and for Shipment froi.z 



R. M. MARPLES (SOLE AGENT), 

 16, WORSHIP STREET, LONDON, E.C. 



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 STREET, MANCHESTER £QUARE, LONDON, W. 



Printed by R. Cuiv, Sons, and Taylor, at 7 and 8, Bread Street Hill. Qaeen Victoria Street, in the City of London, and publishci by 

 MACMILI.AN AND Co., at the Office, ag and 30, Bedford Sueel, Corent Garden.— Thursday, July lo, 1879. 



