234 APPENDIX 



9. (a) In the four squares on one side of the pan plant 

 seeds as follows : In the first, 6 good grains of wheat ; in 

 the second, 6 good grains of oats ; in the third, 4 good beans ; 

 and in the fourth, 4 grains of corn. In the other four plant 

 seeds as follows : In the first, which will be adjacent to the 

 wheat, plant 4 grains of corn ; in the next, which will be 

 adjacent to the oats, plant 4 beans; in the next, which 

 will be adjacent to the beans, plant 6 grains of oats ; and 

 in the next, which will be adjacent to the corn, plant 6 

 grains of wheat. In planting the seeds place the wheat 

 and oats | inch below the surface ; place the corn and 

 beans 1 inch below the surface. 



(6) Plant the squares in the frame to the same seeds, 

 and in the same order. 



10. On the second day after planting, determine and 

 record the temperature for each of the squares in the pan 

 and in the frame. 



11. (a) On the 4th, 8th, and 12th days from planting, 

 measure into the soil in the pan enough water to bring 

 the soil to saturation, and record the amount of water 

 used. 



(6) Apply slowly and uniformly to the soil in the 

 frame an amount of water equivalent to that just added 

 to the pan. 



12. On the 5th day from planting determine and record 

 temperatures as before. 



13. Watch carefully for and record the date of the first 

 appearance of plants in each square. 



14. Note and record any peculiarities or differences 

 in the behavior of the plants growing under the different 

 conditions. 



15. Note and record from time to time the amount of 

 growth made by the plants. 



