The document provides information on 20 tree species including their scientific names, families, and uses. For each tree, it lists the scientific name, family, and brief descriptions of uses. Some of the trees mentioned include deodar, chir pine, neem, buransh, shisham, kafal, bamboo, walnut, oakwood, amla, bhimal, semal, chilgoza, toon tree, silver fir, elm tree, teak wood, chestnut, sal tree, and babul. It also discusses methods of measuring tree diameter using a tape and callipers, as well as vegetative propagation through natural processes, cuttings, grafting, layering,