Apr. 3-Sept. 25, i9j6 IllustrationS XIII 



Page 

 Plate LVI. Fig. i. — Uppermost leaf sheaths of Chinese maize plant, showing 

 the one-sided arrangement of leaf blades and absence of hairs. Fig. 2 . — 

 Leaf sheath of the Waxy Chinese variety of maize, showing the transverse 



lines and absence of hairs 454 



Plate LVII. — A plant of the Esperanza variety of maize, showing the drooping 

 leaves, few tassel branches, and elongated intemodes characteristic of the 



variety 454 



Plate LVIII.— Leaf sheaths of the Esperanza variety of maize, showing the 



maximum development of tuberculate hairs 454 



Plate LIX. — A leaf sheath of a second-generation hybrid maize plant 454 



Plate LX. — A first-generation plant of Chinese X Esperanza maize hybrid. . . . 454 

 Plate LXI. — A second-generation plant of a Chinese X Esperanza maize hybrid 454 

 Plate LXIL — A second-generation plant of a Chinese X Esperanza maize hybrid 454 

 Plate LXIII. — A second-generation plant of a maize hybrid, showing the 



"goose-neck" character that appeared for the first time in this hybrid 454 



Aleyrodidae, or White Flies Attacking the Orange, with Descriptions 

 OF Three New Species of Economic Importance 



Plate LXIV. — Akurocanthus woglumi: Eggs, larvae, and pupa cases on orange 



leaves 472 



Plate LXV. — Aleurocanthtis woglumi: Fig. i. — Colony on an orange leaf. 



Fig. 2. — Eggs and pupa cases 472 



Plate LXVI. — Fig. i. — Dialeurodes citri: Pupae. Fig. 2. — Male and female 



adults of an aleyrodid. Fig. 3. — Aleurolobus marlatti 472 



Plate LXVIL Aleurothrixus howardi: Larvae and pupa cases on an orange 



leaf 472 



Plate LXVIII. Aleurothrixus porteri: Larvae and pupa cases on A/jr/wj sp 472 



Plate LXIX. Fig. i. — Tetraleurodes inori, var. arizonensis: Larvae and pupa 

 cases on an orange leaf. Fig. 2. — Tetraleurodes mori: Pupa cases on a mul- 

 berry leaf 472 



Relative Water REQtnREMENT of Corn and the Sorghums 



Plate LXX. Fig. i. — General view of the screened inclosure and the scale 

 house. Fig. 2. — Method of moving the cans. Fig. 3. — General view of 

 the plant shelter and the surrounding country at Garden City, Kans 484 



Plate LXXI. Fig. i. — Dwarf milo, grown May 22 to September 3, 1915. Fig. 

 2. — Dwarf Blackhull kafir, grown May 22 to September 11, 1915. Fig. 3.— 

 Feterita, ^rown May 22 to September 6, 1915 484 



Plate LXXII. Fig. i. — Sudan grass, grown May 22 to September 14, 1915. 

 Fig. 2. — Pride of Saline com, grown May 22 to August 25, 1915. Fig. 3. — 

 Blackhull kafir, grown May 22 to September 18, 1915. Fig. 4. — Method of 

 sealing the lids with tape and the wax seal around the plants 484 



Availability of Mineral Phosphates for Plant Nutrition 



Plate LXXIII. Effect of varying quantities of Tennessee brown rock phos- 

 phates on plant growth: Fig. i. — Spring wheat. Fig. 2. — Sixty-Day oats . . 514 



Plate LXXIV. Effect of varying quantities of Tennessee brown rock phos- 

 phate on plant growth: Fig. i. — Barley. Fig. 2. — Timothy 514 



Plate LXXV. Effect of varying quantities of Tennessee brown rock phos- 

 phate on plant growth: Fig. i. — Cowpeas. Fig. 2. — Soybeans. Fig. 3. — 

 Red clover. Fig. 4. — Alfalfa 514 



Plate LXXVI. Effect of different kinds of mineral phosphate applied in 



different quantities for red clover 514 



