8 SCHOOL AND HOME GARDENS 
the top of the dish and use finer pebbles than for the 
Chinese sacred lily. Keep them in weak light until the 
flower stalks are well developed. 
Culture of hyacinths in glasses. Single varieties are 
best adapted for growing in glasses. Roman hyacinths 
may be placed in glasses in September, the other vari- 
eties at intervals during October and November. Use 
rain water and place a piece of charcoal in the glass to 
keep the water pure. Place the bulb so that the base 
is just in contact with the water until roots are formed ; 
then leave an air space of a quarter of an inch between 
the base of the bulb and the water. Without the air space 
the bulb will decay. Keep the glass in a cool, dark closet 
for two weeks, until roots are formed, and then expose 
it to the light and air. Change the water every two or 
three days. The bulbs of plants that have been grown 
in water will be of no further use. 
