sand on 12 April, 17 May, and 14 June along with fresh-lifted stock on each date. Fresh and stored white spruce gave comparable results in plantings extended into mid-June in the Midhurst area of Ontario. Natural refrigerated overwinter storage has been used in root cellars and snow caches. Using natural refrigeration in root cellar storage, Jorgensen and Stanek (1962) kept 3+0 and 2+2 white spruce in dormant condition for 6 months without apparent detriment to performance after outplanting. Moreover, the stock was highly resistant to spring frost damage. Natural cold storage for overwintering 3+0 and 2+2 white spruce was also used by Mullin (1966). Unlike Jorgensen and Stanek's (1962) stock, which was raised 550 km to the south of where it was planted, Mullin's stock was raised in a nursery at about the same latitude as the planting site; the stock experienced inside-bale temperatures down to -15 °C in mid-winter, but still showed first- and second-year survival rates of 85.9% and 65.9%, respectively, compared with 91.4% and 76.2%, respectively, for fresh-lifted stock. However, Mullin's stored stock was much more damaged by spring frost than was fresh-lifted stock and it "showed a reduction in vigour as measured in terms of survival, susceptibility to damage and growth". History Trees have been selectively planted by mankind for thousands of years the world over to provide food, shelter, timber, and other tree products as well as for ornamental and ceremonial purposes. The first woody species planted was probably olive in southeast Europe in 4000BC. There are also many biblical references to tree planting, such as in the Old Testament record of Abraham planting a tamarisk to commemorate the treaty of Beersheba (Gen. 21:33). The concept of planting multiple trees together on a large scale to replenish material supplies first developed in Europe during the Middle Ages, and gradually gave rise to forestry plantations. The earliest records of conifer plantations come from Nuremberg in 1368, although the planting of trees on a large scale may have taken place as early as the 13th century in this region to reafforest exploited areas. As Neolithic humans assumed a more settled way of life, and with the technological development of agriculture and consequent growth of civilization, more trees would need to be felled and gathered as a source of timber and other forest products and to make way for cultivation of crops. Given the finiteness of tree products