If there is anything in the theory, that great injury is often caused by extraction of moisture and evaporation when in contact with continual cold, then it is advisable to leave the vines lying upon the ground until after the cold, drying winds of March have passed. As the season advances, the circulation of sap increases, and in March there is more aqueous matter in the vine than in the month of January, and consequently it is more susceptible to changes of temperature, and is more affected by cold, drying winds; but to what extent injury is caused by continual cold, drying winds at this season, we will not undertake to say. There are those who believe the plant more often injured by the cold, drying winds in March or April than by any extremes of temperature during the regular winter months. Without attempting to prove or disprove the theory, we shall only say that our experience for some years has been in favor of leaving our vines on the ground until quite late in the spring. "We have sometimes left them even until after they had bloomed and set their fruit, and once or twice we have thought that we escaped injury from frosts, and from cold, driving rain and sleet storms, by the vines being on the ground, we having plenty of fruit when some of our neighbors, whose vines were neatly and carefully tied up, were destitute.

Grafts, to be forwarded by mail, should be first wrapped in oiled silk, having the ends neatly turned over, and the whole tied securely with fine thread; this is to keep them from the air and from drying. Next, wrap the package in soft wool or cotton before placing it in a strong, thick paper envelope, for the purpose of preventing bruising while in transitu.

As the season advances, the heat in greenhouses may be increased during the daytime, remembering always, that at night it should be from fifteen to twenty degrees lower than during the middle of the day. With light, warmth is a requisite to healthy growth, but without light, its tendency is to render the plant tender and sickly, with soft, spongy, imperfect wood rather than that of a healthy character.