BAIRD &TATLOCK (LONDON) LTD. 



V*. 



,U 



724 



726 



725 



722 



727 



722 T Diffusion Shells, No. 579, C. S. & S. These shells are far superior to the parchment paper, be- 

 lt in the shape of a hose or in connection with glass cylinders. Wich the very smallest 

 volume they offer the largest possible dialysing surface, enabling work to be carried on 

 with the smallest outside vessel, combining greatest cleanliness with absolute reliability. 

 The dialysing shells are, for this reason, exceedingly valuable for experiments in the diges- 

 tion of substances such as albumen bodies, serum, in isolating poisonous substances from 

 secretions and excretions. Packed in boxes with sliding covers containing 25 shells. 



A. 100 by 1 6 mm., per 25 shells 



B. 100 by 40 mm., 





 1 



723 Watch Classes, flattened at bottom. 



Size . . . . . . . . 2 



Price per dozen . . . . 1/3 



1/9 



3 in. diam. 



21- 



724 Soyka's Flat Bottles, for cultivations, polished flat both sides, 6 cm. diameter . . each 



725 Soyka's Flat Bottles, for cultivations, 7 cm. diameter, with one side divided into square 

 centimetres . . . . each 



3 



726 Buckets or Pails, for laboratory use, papier-mache, size io| in. high by loj in. at top, 

 capacity about 2 gallons . . . . . . . . . . . . each 



3 



146 



