19 JANUARY 1929, Page 15

A CARDINAL SECRET.

All manner of quaint technical points about grass have ,been already discovered.- Two are emphasized by one of the -greatest authorities in the United States. One is that no grasses are perennial in the full and usual sense of that term. They keep alive not by preserving old roots, like a tree, but by continually producing new and superficial roots. The other is that some of the very best grasses for greens, especially Bent grasses, thrive best in a soil so acid that few weeds can survive. Hence lime, in most conditions one of the cultiva- tors' greatest friends, may become the worst of enemies. It discourages the best grass for a green and the worst weeds. * *