212 NOTES ON THE SWEET PRINCIPLE OF SMILAX GLYCYPHYLLA. 
obtained from phlorizin (extracted from the root-bark of the apple- 
tree) by similar treatment. On boiling with strong caustic potash, 
it splits up into phloroglucol and phloretic acid. Both of these 
lately been recognized as a decomposition product of several s0- 
called glucosides. 
viously, the sweet principle extracted as above from Smilax 
the present undetermined ; but I am endeavouring to obtain a 
supply of phlorizin, in order to attempt the determination of this 
por 
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