PROBABLY not all Dutchmen are stubborn, notwithstanding the fact that stubbornness is accounted one of their national characteristics along with many virtues. But if some Dutchmen lacked stubbornness, the general average of that intangible was maintained in the person of Hendrik van der Meer. As practiced by him, stubbornness became a fine art. It also became his chief avocation. His vocation was that of rubber planter in Sumatra. In that, he was successful; but it was his stubbornness that his friends boasted of to strangers.