440 Da DUNCAN on Mudarine, 



I have stated to belong to mudarine. Nearly the same pheno- 

 mena are observed with regard to pectic acid. 



I must postpone to another opportunity the changes which 

 mudarine undergoes from various chemical re-agents, as well as 

 the general analysis of the mudar powder, because I think, that, 

 by limiting the present communication to the singular exception 

 which mudarine presents to the solubility of organic principles 

 being increased by increase of temperature, it is more likely to 

 attract the notice of scientific chemists, and to lead to the in- 

 quiry, whether other vegetable principles possess any analogy in 

 this respect. 



