from New South Wales. 137 



inulin ; but in order fully to establish its identity, an analysis 

 was made of the substance dried at 310", of which the fol- 

 lowing are the details : — 



6'441 grains gave 

 10"398 ... of carbonic acid, and 

 3-652 ... of water, 



giving the following results per cent. : — 



Carbon, . . • 43-90 



Hydrogen, . . . 6-29 



Oxygen, . . . 49-81 



100-00 



which agrees perfectly with the results obtained for inulin 

 from other sources. 



The insoluble residue was likewise carefully washed with 

 boiling water, and then constituted a white substance in- 

 soluble in water, alcohol, acids, and alkalies, and agreeing in 

 its characters with cellulose. That it actually was this 

 substance, was determined by the following analysis of the 

 substance at 212°: — 



3-953 grains of cellulose gave 

 6-334 ... of carbonic acid, and 

 2-494 ... of water. 



Carbon, . . . 43-69 



Hydrogen, . . . 7*00 



Oxygen, . . . 49-31 



100-00 



Traces of nitrogen, and of a waxy or resinous matter, 

 were also detected ; but of these, and more especially of the 

 former, the quantity was too minute to admit of determi- 

 nation. When burnt in the air, it left behind 113 per cent, 

 of a white ash. 



The quantitative analysis of lerp presented some difficul- 

 ties. These were chiefly experienced in determining the 

 (juantity of starch, which I at first attempted to do in the 

 usual manner, by washing it out ; but the hairs disintegrated 

 under pressure, and passed in fragments through the cloth. 



