It is a mistake to consider that worm-killers, unless mixed with an artificial manure, have any manurial value. The green-keeper will tell you that after the application the grass has come up much greener. That is due to the fact that the worms are no longer discolouring it by crawling over it with their slimy bodies.

THE MOWING OF GREENS

A common mistake is not to mow greens during the winter months. I have not the slightest doubt that mowing greens during the winter months is beneficial to them: it keeps the grass from becoming coarse.

On those Scotch courses where the greens are so good all through the winter, are not the rabbits mowing the greens all through the winter months?

Are the knives of the mowing machine any more likely to do the grass harm than the teeth of the rabbits?

It is a common mistake in sowing a green not to use a sufficient quantity of seed. The ground should always be thoroughly prepared and manured according to the chemical composition of the soil; then as much as five or six bushels of seed per green can be sown to advantage.

Mixtures of grass seeds may be sold consisting of a considerable proportion of seeds which do not germinate, and are not likely to do so, on ordinary soils. Unscrupulous seeds merchants may undercut the more honest ones in this way. Three bushels of the best seeds will go further than six containing a large proportion of varieties which are not likely to germinate.

In concluding this chapter on General Principles, it may be pointed out that, although many of these ideas may appear revolutionary, the reader may be assured that their success under varying conditions has been proved in practice.

Grange-over-Sands: the site of one of the greens on the rocks near the boundary of the course—work just beginning.