THE FARM, AND OUR FOOD SUPPLIES 151 



4. Make drawings of a wheat plant as a whole, showing the 

 roots, stem, leaves, and head. In what respects is the wheat 

 plant much like the grasses grown for hay ? 



5. In case the wheat seeding was done by use of a drill, 

 what distance is found (a) between rows ; (6) between plants 



in the row ? 







(b) In the Laboratory 



1. Uproot and examine some young wheat plants, grown 

 in moist rich soil in flower jars in the room. Compare the 

 vigor of growth of several of the plants in relation to the 

 apparent size and plumpness of the kernels from which they 

 sprung. 



2. Make drawings (a) of one of the wheat plants ex- 

 amined ; (6) of a wheat head (full size) ; (c) of cross sections 

 of a wheat kernel, both longitudinal and transverse. 



3. Side by side make sketches of the heads of two varieties 

 of wheat to show clearly the points of difference. 



4. Count the number of grains rubbed out from a medium- 

 sized head of wheat. Ascertain what per cent of those you 

 obtain are plump and of full size. Calculate how many fold 

 the wheat kernel from which your stalk sprung multiplied 

 itself, allowing six stalks from one kernel. 



OTHER FOODSTUFFS 



(a) Starch 



1. Remove the outside of a kernel of wheat. Examine 

 and describe its texture, and the character of the substance 

 within the kernel. 



