Bui. 47, Hawaii Agr. Expt. Station. 
Plate I. 
j" ^^^Bl 
i 
* g - 
(us) 
** 
Fig. I.— Determining the " Pectin Number" of a Fruit Juice 
Fig. 2.— Effect of Varying Proportions of Sugar (i to \\ Cups) Upon 
the Amount of Jelly Produced by I Cup of Fruit Juice. 
