BAIRD &TATLOCK (LOM)ON) LTD. 





734 s 

 735 s 

 736 s 



737' 

 738' 



ll 



733-735 



(Section) 



733-735 



736 



Cases for collecting and forwarding samples of water for bacteriological examination. As 

 will be seen from the illustration, the bottle A, holding about 8 oz., is filled with the sample 

 and placed in the inner cylinder, which is closed by an indiarubber cork c ; round this 

 cylinder is a jacket B, for ice and sawdust to preserve the sample during transit. The 

 outer cylinder is made watertight by a cap D, fitted with three swing screws, and placed 

 in a wooden case lined with felt and fitted with lock and key, etc. 



Case with cylinder for one sample . . . . . . . . . . . . each 



Case with two cylinders for two samples .. .. .. 



Case with four cylinders for four samples 



Case for collecting and forwarding samples of water for bacteriological examination, as 

 designed by W. C. C. Pakes, Esq., for containing several 30 or 60 cubic centimetre samples 

 (For further particulars see description in The Science of Hygiene, by W. C. C. Pakes, lisq., p. 76.) 



2 

 2 14 

 3 15 



3 



737 



Lamps for the Gasification of Formalin Tablets. 



A form, including fifty tablets 

 13 form, including fifty tablets 



738 



each 



10 

 10 



CROSS STREET HATTOTM GARDETST, E- C 



148 



