Snake's Head Lilies.See "Fritillarias."

Snapdragon.See "Antirrhinum."

Sneezewort.See "Achillea."

Snowball Tree.See "Viburnum."

Snowberry.See "Symphoricarpus."

Snowdrops (Galanthus).—These are most effective in clumps. They may be planted at any time from September to December, and left alone for three or four years, when they may be taken up and divided. They grow best in a light, rich soil.

Snowdrop Tree.See "Halesia."

Snowflake.See "Leucojum."

Snow in Summer.See "Arabis."

Soil and its Treatment.—Loam is a mixture of clay and sand. When the former predominates it is termed heavy loam, and when the latter abounds it is called light.