I = H^XJfc. 



BAIRD &TATLOCK (LONDON) LTD. 



fscJEIMTIFIC INSTRUMENT MAKERS 



14, CROSS STREET, HATTON GARDEN, LONDON, E.G. 



93, 94, GREAT SAFFRON HILL, LONDON, E.G. 



Telephone Number 2613 HOLBORN (2 lines) 

 Telegraphic Address " BURETTE, LONDON." 

 Cables A.B.C. Code, 5th Edition. 



