SECOND EDITION. 



A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE 



" To the solid ground 

 Of Nature trusts the mind which builds for aye." — Wordsworth 



No. 487, Vol. 19] 



THURSDAY, FEBRUARY 27, 1879 



[Price Sixpence 



Registered as a Newspaper at the General Post Office.] 



[All Rights are Reserved. 



BROWNING'S METEOROLOGICAL INSTRUMENTS. 



Garden or Greenhouse Self-registering Thermometer, for registering the lowest temperature, on box jQ 5. d. 

 scale ... ... ... ... ... ... ... ... ... ... ... ... ... o I 6 



Out-door Minimum Thermometer, as above, with solid metal scale ... ... ... o 3 6 



Minimum Thermometer, as above, with-porcelain scale 



SIX'S THERMOMETERS, 



For Registering Greatest Heat and Greatest Cold. 



Sixs Thermometer, boxwood scale, plain tube, in black 

 japanned case (Fig. 7) — 12 -inch i6j-., lo-inch 14^. dd., 

 8-inch ... ... ... ... ... ... ... ^o 



Six's Thermometer, enamel tube, zinc scale, white japanned 

 case — 14-inch \Zs. 6d., 12-inch 17^., lo-inch \^s. dd., 

 8-inch 



Six's Thermometer, transparent opal glass scale, in white 

 enamelled case, for placing outside of a window at any 

 angle — 14-inch ^i i8.f. dd., 12-inch 25.?., lo-inch 2ii'., 

 and 8-inch... 



Six's Thermometer, enamel tube, opal glass scale, with 

 metal brackets to revolve, mounted on polished oak 

 board (Fig. 6) — 20-inch £2 15^., 14-inch £2, 12-inch 

 £\ 14^., lo-inch ... 



8 6 



0106 



o 17 6 



Fig. 7. 



Illitstrated Catalogue of Meteorological Instruments sent post free. 



JOHN BROWNING, 



046 



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



ROYAL OBSERVATORIES OF GREENWICH AND EDINBURGH, AND THE OBSERVATORIES OF 



KEW, CAMBRIDGE, DURHAM, UTRECHT, MELBOURNE, &c., &c. 



63, STRAND, W.C. 



FACTORY— SOUTHAMPTON STREET, LONDON, W.C. 



