126 NATURE-STUDY LESSONS. 



(b) Of how many parts is it composed ? 

 {c) Describe each of these parts as to form and 

 relative position. 



(d) Make drawings of these and name each part 



shown. 



(e) How many cotyledons are present ? 



22. What is found within the seed-coats in addition to 

 the embryo? 



23. What seed in Section C does it resemble in this 

 respect ? 



24. To which class of seeds — albuminous or exalbu- 

 minous — does it belong? 



25. In what respect does the embryo of Indian-corn 



differ from that of each of the seeds previously examined? 



Seeds such as the corn which contains only one cotyledon are monocoty- 

 ledonous seeds. 



26. Examine similarly onion-seed, wheat, etc., and 

 compare each with Indian-corn. 



27. Plant several seeds of the kinds examined and 

 watch their development to determine the function of 

 each part. 



XXXII.-GERMINATION. 



1. (a) Place some beans, peas and corn in dry sand 



and leave for five or six days in a warm, dry 

 place. 

 (J}) Examine these seeds to discover whether any 

 change has taken place. 



2. (a) Place similar seeds about one inch deep in 



moistened sand or sawdust. Add a little 

 water each day and keep in a warm place. 

 (^) Note what changes, if any, have taken place 

 during five or six days, 



