CONTENTS 



P ART I— Cum ate 



I. Sunlight, - 



11. Sunlight (Continued), 



III. Rain, - - - - 



IV. Tlif Atmosphere, - 



V. The Atmosphere (Continued), 



PAST II— Plants 



VI. Plants and Their Seed, 



\ ii. Parti <.f i riant. - 



VIM. Composition of Plants, 



iv Conpositiof of Plants (CoBttemd), 



X. The Food the Plant Takes from the Soil, 



XI. Tim Pood the Plant Takes from the Air, 



Ml. Sow Plants Grow, 



l'A«.K 





 14 

 18 

 23 

 28 



33 

 38 

 45 

 50 

 55 

 60 

 63 



PART III— Soils 



MM. How Soil- ;il.- M 



\ l\ . (la — ilirat ion ,.f Soils, 



\ \ . ( tanpositfon of Soils, 



\\l Conposttioa of Soils (Continual i , 



Wii. Water in Bolls, - 



Will. Nitrogen fan Um Boil, 



XI \. How Soils Lose Water, - 



\v How Soils Lose H ltrq ge s , 



XXI How Soils Lose Mineral M.n 



XXII. Cultivation of BoflSi 



XXIII. ( ult ivat km of g t inued), 



p\i:t n Mamries 

 x \ i \ i I s "i Mm 



X \\ • lOBIHStnl sl l'«nili/»T9, - 

 XW I « omfl • n "Continued), 



XM II. Use of Manures, - 

 (7) 



67 



72 



78 



83 



88 



94 



100 



106 



110 



117 



122 



128 



isa 



138 

 145 



