HISTORY AND EVOLUTION 35 



and sand. A little of the rougher portion 

 of the turf should be placed in the bottom 

 of the pot to insure drainage. Fill the 

 pots firmly to within one and one-half 

 inches of the top and sow four seeds at 

 equal distances apart, and cover them with 

 an inch of soil. Label each variety care- 

 fully as the seed is sown. The pots are 

 then placed in a cool greenhouse ; and after 

 germination, if the weather is favorable, 

 transferred to cold-frames to harden the 

 plants. The pots may be placed in cold- 

 frames immediately after sowing, but they 

 cannot be sown as early as in the green- 

 house. The seeds of some of the new va- 

 rieties appear to have thick seed-coats, and 

 therefore do not germinate readily. Such 

 seeds should be clipped with a knife so that 

 the moisture can penetrate the seed-coats. 

 After the plants appear the pots should be 

 kept near the glass so that the plants will 



