Hygrornetric Properties of Insoluble Compounds. 95 



Carbonate of lim6 (chalk) 

 ' baryta (native) 



strontia (native) 



Aurum musivum 



Clay iron stone 



Smalt 



Fluor spar. Blue yariety 



Cornish clay 



Serpentine 



Mica slate 



Drawing slate 



Zeolite 



Granite 



Silica — powdered quartz 



.8 



.9 



.1 



.« 



.5 



2.1 



.4 



2.4 



5.2 



1.1 



1. 



.3 



.8 



Charcoal from walnut-tree 

 — — • tulip-wood 



ash 



Botany-bay wood 



• launce-wood 

 cedar 



Ameri«li pine 

 willow 



• birch 

 rose-wood 



• lime-tree . 

 king-wood 



• Zebra wood 



ir.s 



15.4 

 15.3 

 15.8 

 18.7 

 13.4 

 12.6 

 18.1 

 12. 

 12. 

 11.8 

 11.5 

 6.6 



Foolscap paper 18.8 



Cartridge 17.1 



Brown ,15.3 



India 11.6 



Filtering paper 5, 



