SEEDS AND THEIR GERMINATION 93 



made, in ink, on the edges of the box. In the figure, square 

 No. 1 is in the lower right-hand corner; No. 10 is in the upper, 

 right-hand corner; No. 120 is in the upper, left-hand corner. 

 Fill the box with good garden soil (loam) ; pack it down gently. 



b. Soak in water over night (not longer) 14 garden beans, 14 

 lima beans, 14 scarlet runner beans, 14 castor beans, 14 squash 

 seeds, 14 peas, and 14 grains of corn. Plant one seed in each 

 square, in a hole made with a small stick (pencil), and about 

 1 in. deep. Put 12 beans in the first (lower) row of holes, 12 

 lima beans in the second row, and so on. Save the 2 remaining 

 soaked seeds of each kind for e. Label each row of seeds 

 carefully, giving the date of planting. 



In row 8 from the bottom plant 12 radish seeds; in row 9, 

 12 red clover seeds; in row 10 any seeds you wish. 



Water the soil moderately, but do not soak it. Keep the box 

 in a sunny window of a warm room. Now proceed with e. 



c. After 2 or 3 days, begin to excavate carefully around the 

 seeds in squares 1 to 10 (the first vertical row on the right- 

 hand side). If any of the seeds have germinated, take them 

 out and examine them carefully. Study 307 and 308, text. 



You will need to keep a careful record. For this purpose 

 rule two opposite pages of your note book, together, into 120 

 squares like those of the germination box. In each square 

 make note of the time when you examined the seed in the 

 square, and the condition of each seed part; that is, the testa, 

 cotyledons, plumule, and hypocotyl. 



d. After the seeds of each kind begin to germinate, remove 

 one each day for 6 days, or until each seedling has grown 

 definitely out of the ground. Leave the remaining seedlings to 

 grow more fully. Observe them every day, and save them 

 for further study in Exercises 90, 91, and 93. 



In which of the plants that have 2 large cotyledons do the 

 cotyledons come above ground? In which do they become 



