Show Quinine Returns To America Studies of production at atthe atthe atthe the Federal agricultural experiment station in iii Puerto Rico have developed dev lev- ev- ev eloped to the oit the sta sta- station station tion now has nature mature trees and is isable isable isable able to harvest and assay samples pf of bark Dr James T. T Jardine says in this annual report as s director of the Office of Experiment Stations Bark from the trees of Cinchona has yielded 85 percent of quinine as the sulphate a good commercial yield The station has made progress in studying the soil conditions for tion and protection of the crop from insect pests and nd diseases and has standardized a metod for ob ob- obtaining obtaining ob- ob taming good nursery ex ex- expansion exI I of the forest plantings planting'S in Puerto Rico is now possible says Doctor Jardine and ad is being given to other Western Hemisphere countries in the establishment ol of this crop rop 1 |