BAIRD &. TATLOCK: (LONDON) LTD. i 



Cistern of Fortin's Barometer. 



6091-6093 



MHO 6* T17LCCH LONDON. 



6094-6095 





601 s Barometer, Standard, Fortin's principle, superior instrument, polished mahogany frame, 

 tube, .5 in. bore, scale divided into ^ in. on one side and millimetres on the other, with 

 double vernier, reading to .002 in. and .05 millimetre, and thermometer divided into deg. 

 F. and deg. C. . . . . '. . . . . . . . . . ..850 



6092 s Barometer, Standard, as above, graduated in millimetres, only with vernier reading 



to .05 millimetre, and thermometer in deg. C. on polished mahogany board . . . . 7150 



6093 s Barometer, Standard, Fortin's principle, same as No. 6091, but with National Physical 



Laboratory Certificate .. .. .. .. .. .. .. , . 8 15 



6094 s Barometer, Standard, as No. 6091, in polished mahogany case as illustrated . . . . 10 



6095 s Barometer, Standard, as No. 6094, with National Physical Laboratory Certificate, in 



polished mahogany case as illustrated 



10 10 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



1113 



