BAIRD &TATLOCK (LONDON) LTD. 



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 6096 6097 6098 



6096 s Barometer, Mountain, Fortin's principle, with portable tripod stand and gimbals, tube 

 T : n in. bore, scale graduated in inches and millimetres, with double vernier, in leather 

 sling case 



6097 s Standard Barometer, improved by Professor Collie, with mechanical device for tempera- 

 ture corrections by Dr. Shields, on polished mahogany board, with mirror back on which 

 scale is graduated in millimetres 



(See Philosophical Magazine for May, 1896, pp. 406-513.) 



6098 s Student's Pattern Standard Barometer, Fortin's principle, bore of tube .25 in., with 

 double scales divided into inches and millimetres, on polished board, double vernier 

 reading to .01 in. and .1 millimetre, and thermometer graduated in C. and F. degrees . . 



6099 s Fortin's Barometer (Student's pattern), a copy of the Fortin's Standard Barometer, 

 No. 6091, but with tube .25 in., with double vernier and scale divided to read .01 of an 

 inch and .1 millimetre, on polished board, with thermometer divided into deg. C. and deg. F. 



6099 



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14 -CROSS STREET HATTO^K GARDETST, E-C 



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