The Growth of Seeds 35 



according to the number they have. To this last class 

 belong the palms and all our English flowering plants 

 in whose leaves the veins are arranged in lines instead 

 of making a network. By pulling a young plant out of 

 its seed coat you can generally see for yourself to which 

 of these three classes it belongs. 



PRACTICAL WORK. 



1. Write down, one under the other, all the dates since your 

 last lesson. With the help of the notes you made write by the side 

 of each date any change you noticed in your seeds. 



2. Outline in ink the pencil sketches you made of your seeds 

 each day, and add the dates. 



3. Fit your acorns and beans into the tops of the test tubes and 

 pour in enough water to cover the ends of the roots. Write on the 

 Libel your name and the date when the seeds were first put to soak 

 (one week ago). 



4. Find out by careful dissection whether each of the seeds 

 given you is a mono-cotyledon, di-cotyledon, or poly-cotyledon. 



Leave your dissected seeds on a sheet of paper for inspection, 

 and write by the side of each one its name and the number of 

 cotyledons. 



HOME WORK. 



Take your two test tubes home and, as before, write down and 

 draw each day any change in them. 



3-2 



