National Geographic : 1916 Jul
O Underwood & Underwood GATHERING PRICKLY PEAR FRUIT NEAR TIII PYRAMID OF TIHE SUN: SAN JUAN TEOTIIIUACAN, MEXICO The nopal cactus bears the tuna of the Mexicans and the prickly pear of Americans. The tree is composed of series of oval pads. As one of these pads hardens, it becomes a part of the tree instead of remaining its foliage and fruit. The great pad produces a fruit about the size of a duck egg, covered with fine prickles, as full of seeds as the ordinary tig. It is always cool when plucked. The natives subsist almost entirely on it when they can get it. It means as much to the Mexican niios as Georgia watermelon to the American pickaninnies.