July 17, 1879] 



NATURE 



xcv 



FLETCHER'S NEW FURNACE. 



A perfect furnace for all purposes : can be used anywhere, with or without 

 ffas. Simple, cheap, not liable to damage, and always ready for instant use. 

 Will fuse 6 Ibi. metallic n'ckel to pour clean. The power is under the most 

 delicate control, and delicate enamels can be fused in the open flame without 

 protection. It is perfectly adapted for the most precise chemical operations, 

 small forgings, steel and iron castings, &c, and has been carried about fields 

 for heating rivets for fencing. 



Illustrated List en AppiicAtion, 

 T. FLETCHER, Museum Street, Warrington. 



CHEMICAL & PHYSICAL APPARATUS 



BOTTLES, PURE CHEMICALS, 



And eva7 requirement for Science Classes, Private Study, or Business 



Purposes. 



Illustrated Priced Catalogues post free for six stamps. 



Carriage allowed to any station in England or Wales, on orders of 401. 



value and upwards. 



MOTTERSHEAD AND CO. 



7, EXCPIANGE STREET, & 10, HALF MOON STREET, 

 MANCHESTER, 



DRAPER'S INK (DICHROIC), 



THE NEW BLACK INK 



DIFFERING FROM ANYTHING ELSE EVER PRODUCED, 



Writing becomes a pleasure when this Ink is used. It has been adopted 

 by the principal Banks, Public Offices, and Railway Companies throughout 



Ireland. 

 It wiites almost instantly Full Black. I Flows easily from the Pen. 

 Does not corrode Steel Pens. Blotting-paper may be applied at th« 



Iscleanly to use, andnot liabletoBlot. I moment of writing. 



Can be obtained in London, through Messrs. Barclay & Sons, Farring- 

 don Street: W. Edwards, Old Change; F. Newbery & Sons, Newgate 

 Street; Wm. Mather, London and Manchester; J. Austin & Co., Duke 

 Street, Liverpool ; and Stacy & Cook, Paternoster Row ; and to be had of 

 all Stationers. 



BEWLEY & DRAPER (Limited), Dublin. 



NITRITE of AMYL in ANGINA PEC- 



TORIS. — Correspondence between Dr. T. Lauder Brunton, M.D., 

 F.R.S., D.Sc, and the Society for the Total Abolition and Utter Swp- 

 pre-sion of Vivisection, between February, 1876, and April, 1879. Price 

 Tlireepence. 

 John Wilson, 12, King William Street, Strand, W.C. ; and Geoi^e R. Tessc, 

 Honorary Secretary and Treasurer. Henbury. near Macclesfield. Cheshire. 



HOILOWAYS OINTMENT 



A CERTAIN 

 REMEDY 



For BAD BBEASTS, OLD WOUNDS, and SORES. If 

 effectnsUy robbed tn the Neck and Chttt, it cares BOSS 

 THH0AT8, BRONCHITIS, COUGHS and COLDS; and Ut 

 QOUl', £H£UMAII8M, a id aU Skin SUeaiei it ii UH^uOiti. 



BARCLAY & SON, 



138, REGENT STREET, LONDON. 

 To Her Majesty and H.R.H. the Prince »f Wales. 



DUPLEX LAMPS. 

 MODERATOR LAMPS. 



READING LAMPS. 



MICROSCOPE LAMPS. 



BEST COLZA OIL. 



Ai KEROSINE OIL." 



WAX, SPERM, 



AND 



PARAFFINE CANDLES. 



ILLUSTRATED 'CATALOGUES POST FREE. 



NEW ILLUSTRATED CATALOGUE of ELECTRIC 



SIGNALS, &c. , with Instructions for Fixing. 150 Diagrams. Jiutout, 

 post free, 6 Stamps. 



EDWARD PATERSON, 



Electrical Engineer and Scientific Apparatus Manufacturer, 



S, BEDFORD COURT, COVENT GARDEN. LONDON. 



STEAM WORKS. GRAY'S INN ROAD. 



Experiments in Electric Lighting carried out. 



Electrical Apparatus 0/ all Descriptions for Lecture Purposes Loaned out, 



APPARATUS for CLASS DEMONSTRATION and for SCIENCE 



SCHOOLS. 

 ELECTRIC LIGHT APPARATUS. 

 SIEMEN'S and GRAMME'S DYNAMO MACHINES and LAMPS 



for Hire and Purchase. 

 LARGE ASSORTMENT of RUHMKORFF COILS and VACUUM 



TUBES. 

 PROFESSOR HUGHES' MICROPHONE. 

 ELECTRIC BELLS and INDICATORS. 

 TELEPHONES and TELEPHONE CALL BELLS, WIRE, &c., for 



Fixing. 

 EDISON^S ELECTRIC PEN ;£8 %s. 



ELECTRIC and MAGNETIC APPARATUS of all Descriptions. 

 Illustrated Catalogue Electrical Apparatus. Part i. Post free. 6 Stamps, 

 do do Electric Signals, Part 2. Post free, 6 Stamps. 



The LANCASTER POCKET CAMERA 



for plates 4,\ X 3I inch, having; three double dry-plate Slide*, Umbrella 

 Stand, best Leas with plate of Diaphragms, &c., &c., j^^* Particulars 

 free. 



The LANCASTER CARTE PHOTOGRA- 

 PHIC APPARATUS, with Chemicals. &c., &c. complete, Cz V- 

 FIRST QUALITY ASTRONOMICAL TELESCOPES with Object 

 Lensas, by Wray, 24-inch, ;£s or. ; a(-inch, £,j iw. ; 2|-inch, ^lo ; 

 3-inch, £u loi. ; 3j-inch, /isisr. : 4-inch, {,i<,\ 4}-i«ch, £,i,o: 

 5-inch, £,t,t^, &c. Capital Student's Microscope, ^3 3*. Collegian's 

 First Quahty Microscope, f^^ sr. Illustrated Catalogue, 3 Stamps. 

 J. LANCASTER & SON, Opticians Birmingham. 



NOTICE OF REMOVAL. 



JAMES HOW & CO., 



SCIENTIFIC INSTRUMENT MAKERS, 



73, FARRINGDON ST., LONDON 



(I-ATi OF 5, St. Biide St., kvd », Foster Lani). 



HOWS STUDENT'S MICROSCOPE. HOW'S MICROSCOPE LAMP. 



Rock Sections and other Objectt for the Microscope. 



