CONTENTS. 



Introduction 7 



Method of growing the seedlings 8 



Inorganic constituents 9 



Seedlings grown in distilled water 9 



Potash absorption 9 



Amounts of plant food remaining in the seed 11 



Examination of the entire plant 12 



Seedlings grown in nutrient solutions 13 



Effect of solution containing one fertilizing element on absorption of 



plant food 13 



Relative amounts of plant food in plumule and radicle when grown in 



complete nutrient solution 15 



Organic constituents 19 



Crude fat 19 



Fiber 22 



Pentosans 25 



Reducing sugar and sucrose 28 



Appendix 30 



LLUSTRATIONS. 



FIG. 1. Graph showing decrease in total dry weight of plant and increase in 



inorganic plant constituents and weight of plumule and radicle 10 



2. Graph showing decreasing weight of seed and loss of inorganic plant 



constituents therein 11 



5 



