DESCRIPTION OF PLATES. 



Plate I. Plant of the wild soy bean, No. 22428, grown in greenhouse. Note the very 

 slender stems, vining habit, and small, scattered pods. 



Plate II. Fig. 1.— Wild soy bean from Soochow, China, No. 25138, grown at Arlington 

 Experimental Farm, 1908. This variety could not be distinguished from No. 

 22428 when grown side by side. Note the slender vining stems and procumbent 

 habit. Pig. 2.— Soy bean from Cawnpore, India, No. 24689, grown at Arlington 

 Experimental Farm, 1909. This variety is very similar in habit to No. 25138, but 

 is so late that it did not even bloom at Arlington. 



Plate III. Variety tests of soy beans at Arlington Experimental Farm. Note the 

 erect, bushy habit, and differences in size and earliness. 



Plate IV. Seven varieties of soy beans, showing types of habit. No. 17852, Meyer; 

 No. 17852 B, Peking; No. 17263, Austin; No. 18259, Pingsu; No. 22504, unnamed; 

 No. 17278, Hollybrook; No. 17271, Haberlandt. 



Plate V. The same seven plants shown in Plate IV, after hanging in a dry room for 

 six months. All have shattered badly but No. 17852 B, Peking. 



Plate VI. Pods of soy beans, showing range in size and shape. Most of the varieties 

 have three seeds to the pod, two and four being only occasional numbers. (Nat- 

 ural size.) 



Plate VII. Soy-bean pods; No. 19985 L, hairy and smooth pods from one heterozy- 

 gote individual; No. 18258 C and No. 17278, smooth pods from heterozygote 

 plants; No. 22898 A, a variety with tumid pods; No. 19186 B, a variety with 

 much-compressed pods. 



Plate VIII. The seeds shown on this plate are as follows, beginning with the upper 

 row and extending from left to right, there being two seeds of each variety: Row 

 1, Nos. 22882, 17278, 23297 B, 24674, 24641; row 2, Nos. 17251, 24180, 17252, 25656, 

 22899 A; row 3, Nos. 25118, 23546, 17255, 24685, 16790 B, 25138; row 4, Nos. 25136, 

 23229, 20406 G, 22644 A, 19186 D; row 5, Nos. 20412, 22333, 17256, 20409, 22411 A, 

 row 6, Nos. 24182, 17252 B, 17857, 17271 L, 17260; row 7, 21079 L, 23299, 20407. 

 17852, 20797 A; row 8, 19985 L, 21079 M, 18258 C, 19982 A, 19982 A. 

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