244 N^ TURE STUD Y-REVIEW 



Such pollen can be carried by the wind ; hence there is no need 

 for the help of insects or for colored flower parts, odor and nectar 

 to attract them.) 



How Pollen Helps. (The Story of one Life Helping Another) 



In the same or higher grades, bring out the story of how the 

 pollen grains get to the sticky stigma at the top of the "seed box" 

 or ovary and send down tubes through which they add their 

 life to that of the tiny living bodies inside the ovules ("little 

 eggs") within the seed box and cause those living bodies, wakened 

 by the m.agic touch of other lives, to grow into "baby plants." 



The ovules now become seeds. (See Morley, Song of Life, pp. 

 27-33.) 



The terms pollination and fertilization may now be used in 

 higher grades, if their meaning can be made clear. 



Diagrams like those in Wm. Hamilton Gibson's "Eye Spy," 

 in the chapter, "Riddles in Flowers," may be placed on the black- 

 board and children in middle grades may copy. 



Other References (for teachers of these and higher grades): 



Comstock, Handbook of Nature-Study, pp. 492-494 (Flower parts, Flowers 

 and Insect Partners) : pp. 603-606 (Tulips) ; pp. 599-602 (Daffodils and their 

 Relatives); pp.643-647 (Geraniums) 



Morley, Song of Life, pp.33-42. 



Schmucker, The Study of Nature, chapter XVI. (Reproducing the plant.) 



Dana, Plants and their Children. 



Gibson, Blossom Hosts and Insect Guests. 



Keeler, Our Garden Flowers. 



Bailey, Bergen, Atkinson, Coulter, etc.. Botanies. 



Morley, Flowers and their Friends. 



Grant Allen — The Story of the Plants (chapters VI toX.) 



Hunter, Biology, pp. 40-43; 81-83. 



Peabody and Hunt, Plant Biology, pp. 82-87; 1 19-124. 



Lovell, The Flower and the Bee. 



Bailey, Nature Drawing. 



{For Grades j and 6 and Higher Grades) 

 Review if necessary, and continue the work on flowers and 

 seed production outlined for lower grades. 



How Each Part of the Flower Helps : 



1. Fruit and seed producing parts ("essential" or necessary 

 organs). 



(a) The pistil, composed of ovary (seed-box proper, which 

 becomes the "fruit," containing seeds), the style (sometimes 

 absent), supporting the stigma (sticky, to hold pollen). 



(b) The stamens, with anthers (pollen "powder-boxes"). 



