Fig. 2
From: Microscopic observations of paper and parchment: the archaeology of small objects
SEM-BSD image (left) and EDX spectrum (right). Images from different samples of Chinese paper made from fibres of rice straw and bamboo fibres from a 1732 printed book Poetry Tang period (Wang Yaoqu’s Combined Explanations of Tang Poetry), a the siliceous shell (frustule) of a diatom (unicellular algae), b the silicified epidermis of bamboo leaves, used in paper manufacture, c the silicified epidermis of rice leaves, used in paper manufacture