BAIRD &TXTLOCK (LONDON) LTD. 



WARRANTED QUALITIES OF "RESISTANCE" GLASS. 



" Resistance " Glass, lately again improved, is not surpassed by any other glass on the market in resisting 

 sudden changes of temperature, and the action of hot water as well as of corrosive chemicals. No solution of 

 in be detected, and beakers or flasks maybe used with naked flame of a Bunsen Burner without risk of 

 Breakage. 



The articles made of this glass are well finished, and will prove to be considerably larger than stated, the 

 capacity indicated tilling the vessels only up to 3 J of the height and not up to rim as frequently in practice. 



All vessels bear the registered trade mark R in circle and the capacity in ccm. stamped on; tubing shows 

 blue stripes. 



Interior imitations being sold, precaution is necessary in purchase. 



In glass of ordinary quality it is found that nearly always about 200 400 thousandths of a mg. of constituent 

 matter are dissolved out of a surface of 100 cm. square. The insolubility of our " Resistance " glass has reduced 

 this to 2 thousandths of a mg. in cold water and Tj^mg. in hot water. (See Certificate of Reich' s-Anstalt, 

 Charlotlinberg), 



1971 Beakers of Resistance 



1971 



1972 



Glass, squat form with spout. 



(Each beaker hears our brand 



No. 



Height 



Diam. at centre of body outside 



Total capacity 



Price . . 



In Sets. 



No. 



Price 



1972 Beakers of Genuine Bohemian 



No. 



Height 



Diam. at centre of body outside 



Total capacity 



Price 



No! !! !.' 



Height 



Diam. at centre of body outside 



Total capacity 



Price .. 



In Sets. 



No. 

 Price 



if 



65 



3d. 



2/9 



Glass, 



i 



65 



3d. 



2/3 



1800 



l/- 

 ll/- 



lOd. 



8/9 



2| 



2 



125 



4d. 

 3/3 



and capacity.} 



5 



4l 

 3i 

 540 

 7d. 

 6/6 



6 



4i 

 3 

 750 

 8d. 



7/3 



7 



5* 

 34 



1000 



9d. 



8/6 



8 

 6 in. 



4i in- 

 1390 c.c. 

 lid. each. 

 10/3 doz. 



1-3 1-5 1-8 



lid. 2/- 4/4 per set. 



9/9 21/6 47/6 per doz. sets, 



well annealed, squat form, with spout 



2 

 2 



2 

 125 



3d. 

 2/6 



10 



5 

 2.350 



1/2 



3 



3* 



2| 



22O 



5d. 



ii 

 84 



51 



3000 



1/6 



1/10 

 19/3 



395 





