Very often enquiries from field foresters are made to ascertain the comparative rate of growth of different tree species over a period of time. With a view to finding out as to how Dalbergia sissoo, Salmalia malabarica, Eucalyptus citriodora and Populus deltoides 1-63/51 would compare under the climatic conditions obtaining in Peshawar, a study was laid-out in February, 1978. 120 plants of each species were planted in 16 subplots at a spacing of 4 x 4 m. In each subplot, 30 plants were planted, 480 plants in all. Planting was done in a randomised complete block design in 4 replications.