BAIRD &.TATLOCK (LONDON) LTD. 



4735 



extra 3-way tap. 



ft. 



Hip* 1 > 3-way tap attached 

 to apparatus, 



> to apparatus. 



4736 



4733 



4732 s Dr. Haldane's Apparatus for the analysis of small quantities of CO 2 in air, portable 



form in mahogany case . . . . . . . . . . . . ..330 



(For full description and method of using see Blue Book containing Report of Committee on 

 " The Ventilation of Factories and Workshops " (cd. 1302), 1902, price 1/8.) 



4733 s Mercury Bath, polished mahogany, for use when extracting air from 2 oz. bottles, with 



3-way tap A . . . . . . . . . . . . . . . . ..0116 



4735 s Bottles for taking samples of air, 2 oz., with indiarubber bands ,.. .. per doz. 7 



4736 s Dr. Haldane's Apparatus, large laboratory pattern for gas analysis, with mercury trough 3 15 



CROSS STREET HATTON GARDEN, E-C 



