BAIRD &TATLOCK (LONDON) LTD. 



1934* 



1935 s 



1934 1935 1937 



Fortin's Barometer (Student's pattern), a copy of the Fortiri's Standard Barometer, No. 

 1926, 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. 3 12 6 



Barometer, new design, bronzed brass frame, iron cistern, compensated scale, direct 

 reading (without cistern adjustment), bore of tube J in., range of scale 27^ to 33 in., on 

 polished mahogany board, specially designed for use in Mines, with vernier reading to 

 o.oi in. . . . . . . . . . . . . . . . . 3 18 



1936 s Barometer, as No. 1935, but with vernier reading to 0.002 in. . . . . ..440 



.\1936 S Polished Mahogany Case, glazed, with lock and key, for Nos. 1935 or 1936 . . . . 150 



Barometer, Marine, Board of Trade pattern, bore of tube .26 in. in bronzed brass frame 

 with iron cistern. Bracket, arm, and gimbals complete, compensated scale graduated 

 in inches, vernier to 0.002 in., and attached thermometer, in stained wood travelling 

 case with lock . . . . . . . . . . . . . . . . 4 17 6 



National Physical Laboratory Certificate for above . . . . . . . . extra 17 6 







1937* 



389 



