This covering protects them from frost at night, and gives the necessary increase of temperature for growth during the cold weeks of March and April; so that by the first week in May, if the cauliflower has been properly hardened off by ventilating (by tilting up the hand-glasses on one side) they may be taken off altogether and then used to forward tomatoes, melons or cucumbers. If the weather is dry the cauliflowers will be much benefitted by being thoroughly soaked with water twice or thrice a week. * * * The two best varieties of cauliflower we have found as yet [1875] are the Dwarf Erfurt and Early Paris." Notwithstanding the care required for the early crop, the same writer states in his earlier work on "Gardening for Profit," (published in 1867, during a period of high prices,) that "for the past four or five years cauliflowers [early] have been one of my most profitable crops. I have, during that time, grown about one acre each year, which has certainly averaged $1,500. On one occasion the crop proved almost an entire failure, owing to unusual drought in May; while, on another occasion, with an unusually favorable season, it sold at nearly $3,000 per acre. The average price for all planted is about $15 per 100, and as from 10,000 to 12,000 are grown to the acre, it will result in nearly the average before named--$1,500 per acre. Unlike cabbages, however, only a limited number is yet sold, and I have found that an acre of them has been quite as much as could be profitably grown in one garden." The above, by the late well-known New York seedsman and market-gardener, though written nearly forty years ago, is true to-day, so far as the general profitableness of the cauliflower is concerned, and the extra care required with the early crop. The chief condition of success with early cauliflowers is that they shall head before hot weather comes on. To this end the earliest varieties are chosen, and they are set as early as possible in the spring, and pushed rapidly forward, as stated, by using protection if necessary, and by high manuring. It is an advantage to set the early plants between ridges, as is done with early cabbage. The ridges hold the sun and keep off the cold winds, and the furrows between carry off the surface water. The plants are best set upon the south or east side of the ridges, near the base. A good furrow with an ordinary plow forms a sufficient ridge. Formerly it was thought necessary to start the plants in the fall, but since the newer early sorts have been produced, this is being abandoned. Fall sowing has never been as successful in the Northern United States as in England, and the failures to grow cauliflowers successfully in this country have often resulted from adhering to the methods employed in the Old World. Plants started in hot-beds in February, and properly hardened off, receive but little check when set out, and make a better growth than those which have been wintered over.