Nov. 28, 1878] 



NATURE 



XXXI 



THE MINIATURE MICROSCOPE LAMP 



PRICE MJ. 



(REGISTERED) 

 PORTABLE TIN CASE FOR DITTO, is. 6«. 



JAMES HOW & Co., 



SCIENTIFIC INSTRUMENT MAKERS, 



5, ST. BRIDE ST. {J*tt 2, F»sttr Latu\ LONDON. 



THE TELEPHONE COMPANY, LIMITED, 



36, COLEMAN STREET, LONDON, E.C. 

 SOLE PROPRIETORS OF BELL'S AND OTHER PATENTS. 



Telephones and all necessary Instruments Supplied for Domestic or Business Purposes, on Sale or Rental. 



Estimates can be obtained for fitting up Telephenie Communication in Mines, Factories, Workshops, er Private 

 Dwellings ; also for Lines of Wire Communicating between Lighthouses and the Shore ; Shipping Offices and Vesseu 

 in Port ; Noblemen's Mansions and their Lodges, Stables, er Gamekeepers' Residences, &c., &c. 



Agents Wanted. — A Liberal Discount allowed to the Trade. 



Proceedings will be taken against all Persons selling «t using any Telephones, or otherwise infringing the 



Company's Patents. 



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



HORNE'S POMPEIAN DECORATIONS. 



ROBERT HORNE, 



HOUSE DECORATOR and PAPER-HANGING 



MANUFACTURER, 



41, GRACECHURCH STREET, LONDON, E.C. 



By Special Ap a nfltintnt to His M aj«sty the Kiaj of Italy. 



EDWARD PATERSON, 



Electrical Engineer and Scientific Apparatus Manufacturer, 

 3, BEDFORD COURT, COVENT GARDEN, LONDON. 



APPARATUS FOR CLASS DEMON- 

 STRATION and I'or SCIENCE SCHOOLS. 



ELECTRIC LIGHT APPARATUS. 

 SIEMEN'S DYNAMO MACHINE for 



Hire. 



LARGE ASSORTMENT of RUHMKORFF 



COILS and VACUUM TUBES. 



PROFESSOR HUGHES' MICROPHONE. 

 COOKE'S TELEPHONE ALARUM. 

 ELECTRIC BELLS and INDICATORS. 

 TELEPHONES and TELEPHONE CALL 



BELLS, WIRE, &c., for Filing. 



ELECTRO - METALLURGICAL CABI- 



NETS, from ;f 4 to £,\i. 



PROF. S. P. THOMPSON'S LANTERN 



SLIDE GALVANOMETER, 20J. 



EDISON'S ELECTRIC PEN £8 8s. 

 ELECTRIC and MAGNETIC APPA- 



RATUS of all Descriptions. 

 New Illustrated Catalogue of (>o pages post free 6 stamps. 

 Orders •ver £% carriage ^d to any part of the United Kincdam. 



„ . W. LADD & CO; 



Scientmc Instmment Manafactnrers 



IBy Af^nntmtnt ti ths Rtyal Injiituiion tf Grtat BritatnX 



II & 12, BEAK STREET, REGENT STREET W 



BYRNE'S PATENT COMPOUND PLATE PNEU- 

 MATIC BATTERY for Cautery and general DurDo«:es 



EDMUNDS' PHONOSCOPE f.r makLg Voed Vibri- 

 tioni visible in a Vacuum Tube. 



HUGHES' MICROPHONE. 



TELEPHONIC APPARATUS, Ac. 



LADD'S IMPROVED SELF-CHARGING HOLTZ 

 ELECTRICAL MACHINE, with 4 to 12 Plates in- 

 closed in a Mahogany and Glass Case. This instrument is 

 unmediately available in any condition of the atmosphere 

 Philosophical Apparatus of every Description 



S. C. TISLEY & Co 



OPTICIANS, ' 

 17 2, BROMPTON ROAD, S.W. 



(Qoc* ts South Kensington Muteum). 



THE PHONEIDOSCOPE. 



An iBstniiaent for Obienrmg the Coloiir-Fitures of Liquid Films under the 



action of Sonorous Vibration*. 



Being a visible demonstratiea of the Vibratory and Molecular Motion of a 



Telephone Plate. 



The PHONEIDOSCOPE, with 3 Discs, Bottle af Solution. De«»iptiTe 



Painyhlet, ftc., ia Card'x)«Td Box. iw. (>d. 



MAKDFACTURKB AND SOLB WHOLKSALB AKB KSTAIL BT 



S. C. TISLEV & CO., 17., BROMPTON ROAD, LONDON, S.W 

 TELEPHONIC ELECTRICITY. All Materials luppUed for ex»erf. 

 laental purposes. 



Price Lists #/ Electrical mnd Acjustie Af^rttut, with DratAnes and 

 Descriftten »f the Harmnufrtt^k, Ptst Free, id. 



HOLLOWAYS PILLS 



THIS 

 MEDICINE 



Ts a Certain Cure for all Disorders of the LIVES, STOMACH 

 ANB BOWELS. A Great PUEIFIEE of the BLOOD; a 

 Powerful Invigorator of the System, in cases ef WEAKNESi 

 AND DEBILITT, and is nnequaUed in Eemale Complaint*. 



THE BEST FARMERS* NEWSPAPER 



THE CHAMBER OF 

 AGRICULTURE JOURNAL 



AND FARMERS' CHRONICLE, 



Edited by John Algbrnon Ci^rkb, Secretary to the Central Chamb« 

 TV . • , . °f Agriculture, 



STi? *?f° attention to the discussions and proceeding of the Chambert 

 mJ^r^VT*,?'^ ^"'*' ^"■'*'? ^""^"^ now number Spwards olTtIZ 

 SJ^S, T*^"* ^T* °"P°*' P?P^ °° Poetical farmiie, and a m^Hf 

 intelligence of particular value to the ajriculturiit. ^^ 



1 he London Corn, Seed, Hop, Cattle, and other MarkeU ol Monday are 

 ^jally reported in this Journal, which i, despatched the s^m.erS^ 

 as to ensure dehTery to country subscribers by the first nott on Tui5l^ 



Pubhshed by W. PICkTeRING, J, A^ndel Street. Stnmd. W.C 



Illvstrated Cmialepie, SLxfenee. 



MICROSCOP ES, OBJE CTIVES. &o, 



CENTENNIAL EXHIBITION. PHILADELPHIA, U.S.A. 



The Medal and Highest Award has been giren f»r Design, 

 Censtruction, Optical Excellence, and Moderation in Price, to 



HENRY CROUCH, 



66, BARBICAN, LONDON, E.G. 



Fally lUustnted Catalogue and fell Instructions Vj Post, < Stance. 

 Mailed abroad free. 



