126 PLANTS AND ANIMALS' 



Look up their names and habits in the reference book and 

 write a brief description of each kind upon the paper 

 upon which you have mounted the leaves. 



b. Try to obtain pieces of trees with the bark on. 

 Saw these lengthwise, and polish them with sandpaper, 

 after they are thoroughly dry. Label them carefully. 

 To keep the collection, a screw eye may be inserted in 

 one end and the samples hung on hooks which are the 

 right distance apart. 



c. A collection should also be made of the seeds and 

 seed cases of all the trees. These may be placed in 

 small cardboard boxes which are properly labeled. 



It would be a good plan for you to write some letters 

 to pupils in other cities and states, telling them what you 

 are doing and asking them to send you samples of flow- 

 ers, leaves, wood, and seeds which grow there and which 

 do not grow near your school. In return you would 

 send samples which they did not have. Of course you 

 would send your best work. 



The seeds of trees grow in an interesting manner as 

 you will see by the next experiment. 



Experiment 61. Planting Tree Seeds. 



Apparatus: Box filled with sand. 



Materials: Acorns and other soft-shelled nuts, 

 seeds of the apple, pear, orange and lemon trees, and any 

 other tree seeds which are easily obtainable. 



a. Plant the seeds or nuts about one inch deep in 

 the sand' and keep it moist. When the seedlings have 



