apart, and the seedlings must be thinned early, leaving three or four inches between them in the rows.  To keep the bed free from weeds is the only attention necessary, unless an occasional watering becomes imperative.  In September the entire crop may be transferred to fresh ground, allowing eighteen inches between the plants, or part may be drawn and the remainder left at that distance.  In the following spring the flower-stems will begin to rise, and if these are allowed to develop they reduce the size of the leaves and seriously impair their quality; hence the heads should be pinched out as fast as they are presented.

==Tarragon== (=Artemisia Dracunculus=).—­This aromatic herb is used for a variety of purposes, but is most commonly employed for imparting its powerful flavour to vinegar.  The plant is a perennial, and must be propagated by divisions in March or April, or by cuttings placed in gentle heat in spring.  Later in the year they will succeed under a hand-glass in the open.  Green leaves are preferable to those which have been dried, and by a little management a succession of plants is easily arranged.  For winter use roots may be lifted in autumn and placed in heat.  Those who have no facilities for maintaining a supply of green leaves rely on foliage cut in autumn and dried.

==Thyme, Common== (=Thymus vulgaris=).—­An aromatic herb, well known in every garden, and in constant demand for the house.  Seedlings are easily raised from a sowing in April, or the plant can be grown from division of the roots in spring.  Thyme makes a very effective edging, and is frequently employed for this purpose on dry, well-kept borders.

==Thyme, Lemon== (=Thymus Serpyllum vulgaris=).—­This plant cannot be grown from seed; only by division of the roots in March or April.  It is an aromatic herb, generally regarded as indispensable in a well-ordered garden.

==Wormwood== (=Artemisia Absinthium=).—­An intensely bitter herb, used for medicinal purposes.  The plant is a hardy perennial, and is usually propagated in spring by taking cuttings or dividing the roots.

==Horse-radish==

==Cochlearia Armoracia==

This vegetable is highly prized as a condiment to roast beef, but as a rule it is badly grown.  The common practice is to consign it to some neglected corner of the garden, where it struggles for existence, and produces sticks which are almost worthless for the table.  In the same space a plentiful supply of large handsome sticks may be grown with as little trouble as Carrots or Parsnips.  Choose for the crop a piece of good open ground, and in preparing it place a heavy dressing of rotten manure quite at the bottom of each trench.  Early in the year select young straight roots from eight to twelve inches long, each having a single crown, and plant them one foot apart each way.  By the following autumn these will become large, succulent sticks, which will put to shame the ugly striplings grown under starving conditions.  The roots may be dug as required; but we do not advocate that method.  It is better practice to clear the whole bed at once, and store the produce in sand for use when wanted.  This plan should be repeated each year, and a fresh piece of land ought always to be found for the crop.