watering will need careful management.  It would be an advantage if the fruit could be finished off without a drop of water from the time they are about two inches in diameter, but the hot pipes render it almost impossible.  Still, water must not be given more frequently than is actually necessary to keep the plants going, and when it is applied let there be a thorough soaking.  At the same time ventilation will demand constant attention, and, provided the temperature can be maintained, it is scarcely possible to give air too freely.  In the early stage of growth, and in mild weather, if the thermometer registers 65 deg. at 9 P.M., the cultivator may sleep peacefully so far as Melons are concerned.  As the season advances, the temperature may be increased to 70 deg. by night, and 75 deg. to 90 deg. by day.  With reference to stopping, it may be sufficient to say that it is a waste of energy to allow the plant to make a large quantity of vine, which has afterwards to be cut away.  By judiciously pinching out the shoots, the plant can be equally spread over the allotted space.  The flowers must be fertilised, and in this respect the treatment differs from that advised for Cucumbers.  The practice has the advantage of allowing the fruits to be evenly distributed over the vine, and from four to six, according to the size of the variety, will be enough for each plant to ripen.

==Mustard==.—­Those who care for salads need a supply of Mustard almost all through the year, and to secure a succession it will be necessary to sow at regular intervals.  It is a good plan to keep a few boxes in use for the purpose in a plant-house or pit, sowing one or two at a time as required, and taking care not to sow wastefully.  The seed may be sown out of doors all the summer, on a shady border, but nothing surpasses boxes or large pans under glass.  Mustard and Cress should never be sown in the same row or in the same pan, but separately, because they do not grow at the same pace, and the former may be fit for use a week or so before the latter.  Do not be content to use Rape, or any other substitute, but sow the genuine article.

==Onion.==—­The modern practice of sowing Onion seed in boxes under glass is to be commended for several reasons.  It insures a long season of growth and results in handsome bulbs far above the average in size.  Transplanting affords the opportunity of selecting the strongest seedlings and of placing them at exact intervals in the bed.  As a crowning advantage this system, to a large extent, prevents attack from the Onion Fly.  Sow in boxes filled with rich soil and see that the plants have sufficient water, although very little is necessary until after transfer to other boxes.