I 



A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE 



BROWNING'S 

 MIGEOSCOPES 



The ^TODEL MICROSCOPE, made expressly 

 for class demonstration, has rack and fine adjust- 

 ments to the body, large stage fitted with universal 

 stage motions, removable stage fittings iox appa- 

 ratus, revohang diaphragm, A or B eye-pieces, and 

 I in. 16° and ^ in. 75" objectives of our own 

 manufacture. 



PRICE £5 10s. Od. 



PRICE LIST OF MICROSCOPES FREE. 



Illustrated Catalogue of Microscopes \vith 

 35 Illustrations, 8 whole page engravings, 

 post free, 7 stamps. 



JOHN BROWNING, 



OPTICAL AND PHYSICAL INSTRUMENT MAKER TO H.M. GOVERNMENT, THE ROYAL SOCIETY, THE 

 ROYAL OBSERVATORIES OF GREENWICH AND EDINBURGH, &c., &c. 



6 3, STRAND, W.C, LONDON. 



FACTORY— SOUTHAMPTON STREET AXD EXETER STREET, LONDON. 



PRIZE MEDAL, 1862. ESTABLISHED 100 YEARS. 



Telescopes, Sfeciroscopes, Opera Glasses, Gr^c, £'-•<:. 



