National Geographic : 1940 Feb
Photograph by J.Baylor Roberts "THEY'VE TAMED OUR TREES AND MADE THEM MARCH IN ROWS!" So exclaimed an Amazon Indian when shown such a picture of plantation Hevea brasiliensis. These Sumatra 8-year-olds "march" 10feetabreast incolumns 20feet apart; their service stripes are the diagonal tapping cuts. Across the coolie's shoulder is a "picul stick" balancing his latex cans, thesquare oneanoldkerosene tin reinforced with iron strips. The parade of the rubber trees, about as tall as maples, is over ground planted with a cover crop toprevent erosion and noxious weeds.