_Pruning_--is the most important part of successful grape-culture. Mistakes on this subject are very injurious. Let vines grow in their own way, and you will have much wood and foliage, and very little, poor fruit. Some cut off the shoots in summer just above the fruit, and remove most of the leaves around it to expose the fruit to the sun. This often proves to be a ruinous mistake; the sap ascends to the leaves, and there amalgamates with what they absorb from the atmosphere, and thus forms food for the vine and fruit. It is the leaves, and not the fruit, which need the sun: the leaves are the lungs, upon the action of which the life and health of the fruit depend. Blight of the leaves destroys the fruit, and a frequent repetition of it destroys the vine. Grape-vines should not be pruned at all until three years old, as it retards the growth of the roots, and thus weakens the vines. Older vines should be freely pruned in November or December; pruned in winter they _may_ bleed in the spring, and pruned in the spring they _certainly_ will bleed. Tender vines, not protected, may have an excess of wood left in the fall to allow for what may perish in winter; in this case, cut away the dead and surplus wood in spring, but never until the leaves are well developed, so as to prevent bleeding. Necessary summer-pruning is of much importance. Remove no leaves, except the ends of branches, that have already made as much wood as they can mature. In the Middle states this should be done about the last of July, and at the South a month earlier. Weak lateral branches, that bear no fruit, may be removed, but not all of them, for it is on the wood of this year's growth that the fruit will be found the following season. Old wood does not send out wood in spring that will bear fruit the same season; that wood will bear fruit next season if allowed to remain. Whoever observes will notice that grapes grow on young shoots of the same season; but they are shoots from wood of the previous year's growth, and not from old wood. Many suppose if they trim their vines very closely, as the old vines send forth abundance of new wood, and it is new wood on which the fruit grows, of course they will have abundance of grapes; and they are disappointed by a failure. The explanation of the whole is, fruit grows on new wood, from wood of previous year's growth, and not from old vines; hence, in lessening a vine, remove old wood. This is the renewal system, whatever the form of the vine, and is the whole secret of successful pruning. This accounts for the great success of the Germans in producing such quantities of grapes on low vines. In their best vineyards, they do not allow their vines to grow more than six or seven feet high, and yet they produce abundantly for many years. They so prune as to have plenty of last year's wood for the production of fruit the current season; after this has borne fruit, they remove it to make room