MAKING AND CARE OF A LAWN
The soil must be drained and not too much shaded by trees. At first it should be summer fallowed or cultivated every few weeks throughout the summer, to kill the weeds and make it fine and level. A thick seeding of lawn grass-seed should be sown early the next spring and raked lightly in. All levelling and preparation must have been done the previous season.
Coarse grasses, such as timothy, should not be used on a lawn. Red top and Kentucky blue-grass in equal parts are best and, if white clover is desired, add about half as much white Dutch clover seed as red top. If the soil has been prepared as above, there is no need to use a foster crop of oats or barley, as is done in seeding down meadows. Roll the lawn after seeding and also after heavy rains as soon as the surface dries. Shortly after the grass appears, begin to run the lawn-mower over it, so as to cut weeds or native grasses that may be gaining a foothold. Watering is dangerous, unless carefully and regularly done during the summer, the evening being the best time. Merely wetting the surface by sprinkling encourages shallow rooting and therefore rapid drying out. Regular mowing and rolling are more important.
REFERENCES
Parsons: How to Plan the Home Grounds. Doubleday. $1.00
Waugh: The Landscape Beautiful. Judd. $2.00
Department of Education: Improvement of School Grounds.
SOIL STUDIES
WEIGHT
Using a balance, compare weights of equal-sized boxes of different soils, dried and powdered fine. Note the comparative lightness of humus. Weigh a box of earth taken fresh from the field, from this compute (1) the weight of a cubic foot of such soil, (2) the weight of the soil to the depth of a foot in a ten-acre field.