National Geographic : 1938 Nov
AN UNWILLING STEER GOES FOR A RIVER VOYAGE The protesting animal, embarking at Fazenda St. Lawrence, Marajo Island, for Belem, across the river, is hauled on board by a rope attached to its horns. Behind, a boy urges the "passenger" onward by twisting its tail (page 658). Photographs byHugh B.Cott JUICE FROM THE INDIA-RUBBER TREE TURNS INTO ABALL The milky liquid is slowly poured over apole rotated byhand, and alayer of sap adheres to the wood. This layer ishardened inthesmoke ofthe fire. The operation is constantly repeateduntil alarge sphere has been built up(page 667).