KNOWLEDGE. 



November, 1910. 



I ISENTHAL & Co. 



I Remember our Specialities: 



I Resistances. 

 ■ Volt- & Ammeters. 

 I High Tension Condensers. 

 I Electric Heaters. 

 1 Apparatus for 



Wave Telegraphy. 



WE MANUFACTURE AT OUR 

 OWN WORKSHOPS. 



(Dept. 2), 



85, MORTIMER STREET, W. 



Cofiiractors to the Admiralt\\ War^ 

 India^ and Colomal Offices^ ^c. 



FLATTERS &GARNETT, Ltd 



32, Dover Street, 



(Close to the University and Museum), 



Telephone: 7845 Centr.ll. IVIanCrieSter , SiEi 



Telegr.iins: "Slides," M .inchester. 



DEPARTMENTAL \ Any sent post free; please state which is 

 CATALOaUES. I required. 



"A" Microscope Slides -over 40,000 in stock. 



"B" Microscopes and Accessories. 



Mounting Requisites. 



Dissecting Instruments, 



Scientific Glassware, &c. 



"C" Collecting Apparatus. 



Glass Top Boxes, 



Pocket Lenses, &c. 



"D" Zoological. Botanical & Geological 



Models, Specimens, Diagrams. 



"E" Lantern Slides— over 25,000 in stock. 



F" Optical Lanterns and Accessories. 



•P" Photographic Work. 



Developing, Printing, Enlarging, &c. 



[/\c'ac^y shortly. 



FLATTERS & GARNETT, Ltd. 



Note abofe o?ily Address. 



No connection with any otlter Firm. 



I A GIFT OF LASTING INTEREST. | 



The " DUPLEX BAROGRAPH 



with our new Opal glass dial altachnient, showing present reading of tlie 

 Barometer in addition to the record on the chart. Very be<t quality, in 

 solid oak, walnut, or niahoganv case, with bevelled ed^e plate glasses and 



chart drawer. 



Ink, 



Price complete, with a year's supply of Charts 

 and Instructions. 



£6 2 



CARRIAGE PAID AND SAFE DELIVERY GUARANTEED IN U.K. 



Sole Manufacturers: 



PASTORELLl & RAPKIN, Ltd., 



ESTAB. 



1730. 



ACTUAL MAKERS of all kinds of Meteorological Instruments. 



CONTKACTONS TO H . M . GovT. 



46, HATTON GARDEN, LONDON, E.C. 



Telegrnms : " Raplcin, London." Telephone: 1981 Holborn. 



" Illustrated List of Standard Instruments Post Free, 



iPV" Special Illustrated List of Barog;raphs and Thermoj;raphs (covering 

 various patterns, from £3 lOs.) post free. 



RED 



DELICIOUS COFFEE. 



WHITE 



& 



BLUE 



For Breakfast & after Dinner. 



In making, use less quantity, it being mucti stronger 

 than ordinary Coffee. 



SECONDHAND 



MICROSCOPES AND APPARATUS. 



Secondhand ••Discovery" Microscope by Swift, double 

 nosepiece, 2 eyepieces, ^ and ^ objectives, in case, £5 10s. 

 Second-hand ^V Oil Immersion by Gowlland, £2 2s. 

 ,, Abbe Condenser and iris diaphragm. £1 Is. 



,, Centring Achromatic Condenser and iris diaphragm 



in case by Zeiss, £2 10s. 

 ,, Air Pump with bell cover on mahogany base, 18s. 6d. 



Pine case of 12 drawers to hold 6 dozen objects, 2s. 6d. 

 A comprehensive selection of Microscopic Obiects, including Geolof^ical, 

 Botanical, Anatomical, Minerals, Diatoms, Insect parts, &c., at 6d. each. 

 The Largest Stock In London of Secondhand Microscopes and 

 Objectives by all the leading makers, comprising Outfits suitable 

 for Histology, Bacteriology, Botany, and all branches of Science. 



Cataioques /ost free on applicatio}!. 



MILLIKIN & LAWLEY, iS^NolSI'^''^ 



w.c. 



Telephone— City J 706. 



Printed for the Proprietors (Knowledge Publishing Company, Limited), by John I\.ing, Ealing and Uxbridge. - November, 1910. 



