206 



line of physiological work. Of course you understand that in 

 this State there is a definite course for every school to follow. 



1. To test seeds for starch, 



2. To test seeds for proteid. 



3. To test seeds for sugar. 



4. To test seeds for fat. 



5. To test seeds for mineral matter. 



6. To determine the temperature best suited to seed germina- 

 tion and the growth of seedlings. 



7. To determine the relation of moisture to seed germination 

 and the growth of seedlings. 



8. To determine the relation of air to germination. 



9. To determine what gas is given off by germinating seeds. 



10. To determine the relation of light to seed germination and 

 to the growth of seedlings. 



1 1. To determine the effect of soil upon seed germination and 

 the growth of seedlings. 



12. To determine the use of the cotyledons to the seedling. 



13. To determine the use of the endosperm to the corn seedling. 



14. To determine the cause of the arch of the hypocotyl. 



15. To determine where the increase in length in the root is 

 most rapid. 



16. An experiment to show osmosis. 



17. To determine where the root hairs are most numerous. 



18. To determine the direction of growth of roots when unin- 

 fluenced by gravity. 



19. The use of the corky layer to the stem. 



20. The path of sap in the stem. 



21. To show transpiration. 



22. To show photosynthesis. 



23. To show respiration of aquatics. 



Under the title "Organizing a field trip," H. M. Benedict has 

 an article in the April number of the Nature Study Review which 

 is particularly a propos at this season of the year. His discussion 

 of the subject is from the standpoint of a course in general biology 



