BAIRD &. TATLOCK (LONDON) LTD. 



Test Papers. 



These test papers are in perforated rolls, 

 5 millimetres broad, and in metal boxes each 

 containing sufficient paper for 100 tests. In 

 addition to being very handy for the pocket, 

 they are more economical in use. 



BIBULOUS PAPER. 



Red litmus 



Blue .... 



Phenolphthalein 



Duplicate Test, blue and red on one ribbon (see figure above) . . 



WRITING PAPER, white on one side. 



Red litmus 

 Blue . . 

 Turmeric 



TEST PAPERS 



Brazil wood paper, books 



Congo red paper, books 



Red litmus books 



Blue 



Neutral 



Red litmus papers 



Blue .... 



Starch paper, books 



and Potassium Iodide paper, books 

 Turmeric books . 



Congo red 



Red or blue 



papers 



BOOKS AND SHEETS. 



. . per book 



per sheet 

 . . per book 



per sheet 



TEST PAPERS, best Quality, extra Sensitive. 



EACH BOOK IN SEPARATE PAPER. 



Per doz. 



Per book.' 

 s. 

 2 



Per doz. 

 books. 

 ! s. d. 

 i 6 



10 o 



10 

 15 



12 



Per gross 

 books. 

 s. d. 



15 



CROSS STREET HATTCTN GARDEN, E-C 



1246 



