The Flowering Plant 



A. — Seeds 



Material. — Select a number of well-formed dry seeds, 

 including beans, peas, corn, cucumber, watermelon, oak, 

 maple, flax, and mustard. 



Other material and apparatus required : an egg, corn- 

 starch, iodine, barium hydrate, sodium hydrate, one per 

 cent, solution of copper sulphate, grape-sugar, distiUed 

 water, Millon's reagent, diastase of malt, a few test- 

 tubes, parchment, gauze, blotting-paper, filter -paper, 

 bell-jar, tumbler, razor, cork, scalpel, small funnel, alco- 

 hol lamp, forceps, dividers, metric scale, hand-lens, 

 chemical thermometer, compound microscope, dialyzers, 

 and a' piece of glass tubing four inches long and two 

 inches in diameter. 



MOEPHOLOGT 



Soak a number of large seeds — e. g., beans, peas, corn, 

 etc. — in water overnight in order to soften them. 



I. — Bean, notice : 



a. Shape. — What is the shape of the bean as viewed 

 from the side ? From the edge ? From the end ? 

 Compare several different kinds to see the varia- 

 tions in shape. How do you account for the 

 shape ? 



