Contr. Nat. Herb., Voi. IX. 



Plate XXI. 









2IR 





spj 



Sir ;s 



PI 



peflf ■ 



1 



n ^Ssy B 



Ft'V 



\M 







» 



I ' ' \nl 



■kJ 



rssk .- 



- -V JT 



lJi 



17 vrse? 



Fig. 1.— A Modern Oven, Island of Guam. 



Fig. 2.— Evaporating Salt from Sea Water. 



