PLATE VII 



Fig. I. — Triumph cotton in shelter (pots 163 to 168), grown May 29 to September 

 16, 1913. Photographed on September 15, 1913. Water requirement, 657±ii. 



Fig. 2. — Boebera papposa, gro«-n July 25 to September 17, 1913. Photographed 

 on September 15, 1913. Water requirement, 881 ±26. Helianthus petiolaris in back- 

 ground. 



Fig. 3. — Rice in shelter (pots 157 to 162), grou-n June 12 to September 16, 1913. 

 Photographed on September 15, 1913. Water requirement, 744±i7. 



Fig. 4. — General view of the shelter, showing emmer at the left and White Hull-less 

 barley at the right. Photographed on July 3, 1912. 



Fig. 5. — General view in the shelter, showing com in the foreground. Photographed 

 on September 6, 1912. 



