ILLUSTRATIONS. 





PLATES. 



Page. 

 Plate I. Fig. 1. — Beds used in the shade experiments at Baton Rouge, La. 

 Fig. 2. — Reproductions from photographic prints, showing the 

 texture of the cloths used on sections 1 to 5 and indicating the 



relative light penetration 8 



II. Fig. 1. — General appearance of cotton plants 30 days after germina- 

 tion in bed A. Fig. 2. — General appearance of cotton plants 30 

 days after germination in bed B. Fig. 3. — Relative growth of 



mustard plants at the end of 24 days in beds A and B 8 



III. Fig. 1. — Leaf prints of potato from all sections of beds A and B at 

 the end of 30 days. Fig. 2. — Leaf prints of corn from beds A and B 



at the end of 30 days 24 



IV. Fig. 1. — Leaf prints of lettuce from beds A and B at the end of 30 

 days. Fig. 2. — Leaf prints of mustard from beds A and B at the 



end of 30 days 24 



V. Fig. 1. — Leaf prints of cotton -from beds A and B at the end of 30 

 days. Fig. 2. — Leaf prints of radish from bed B at the end of 30 



days 26 



VI. General appearance of bed A, sections 3, 2, and 1, at the end of 50 



days 26 



TEXT FIGURES. 



Fig. 1. Diagrams of the beds and plantings 8 



2. Diagrams showing temperatures at 6 a. m., averaged for the entire 



period of the experiments 10 



3. Diagrams showing temperatures at noon, averaged for the entire period 



of the experiments 11 



4. Diagrams showing temperatures at 6 p. m., averaged for the entire 



period of the experiments 12 



5. Diagrams showing the saturation deficit at 6 a. m., at noon, and at 



6 p. m., averaged for the entire period of the experiments 12 



6. Diagrams showing the relative evaporation from a porous cup for the 



entire period of the experiments 13 



7. Relative sizes of lettuce plants 50 days after germination 15 



8. Relative sizes of potato plants 30 days after the beginning of growth . . 17 



9. Relative sizes of potato plants 50 days after the beginning of growth . . 18 



10. Relative sizes of cotton plants 50 days after germination 19 



11. Relative sizes of com plants 50 days after germination 20 



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