ILLl STRATIONS. 



PLATES. 

 • Page. 



Plate I. Wheat kernels and the aerial bulblete of wild garlic. Natural size . . 22 

 II. Fig. 1.— ,1, l-pound^iainple of garlicky wheat, Lot A, as received; B, 

 amount of garlic in 1-pound sample when received, 2.17 per cent; 

 C, amount of garlic remaining in 1-pound sample after drying and 

 (•leaning, 0.05 per cent. Fig. 2.— .1, 1-pound .sample of garlicky 

 wheat, Lot B, as received; B, amount of garlic in 1-pound sample 

 when received, 0.56 per cent; C, amount of garlic in 1-pound sam- 

 ple after drying and cleaning, 0.06 per cent. Fig. 3. — A, 1-pound 

 .sample of garlicky wheat. Lot C, as received; B, amount of garlic 

 in 1-pound sample when received, 2.04 per cent; C, amount of gar- 

 lic remaining in 1-pound sample after drying and cleaning, 0.16 

 per cent 24 



III. Variation in burn ( )f wrappers due to different fillers 34 



IV. Variation in burn of tillers due to different wrappers and binders. . . 36 

 V . Pinkroot ( Spigelia manlandka L.) --- 42 



VI. East Tennessee pinkroot ( Kuellia ciliosa Pursh ) 44 



VII. Fig. 1.— Harvesting orchard grass for seed. Fig. 2.— Method of 



shocking orchard grass; shocks showing bands at top 50 



VIII. Pots of red clover, showing the effect of lime on a soil unfavorable 



to the growth of clover 76 



IX. Fig. 1.— Pots of garden peas, showing the effect of aeration on 

 growth. Fig. 2.— The garden peas illustrated in figure 1, showing 

 the effect of aeration on nodule formation 80 



TEXT FIGURES. 



Fig. 1. The apparatus used in the cranberiy spraying experiments 8 



•J. Apparatus for testing the burning quality of cigars . . ^ 34 



3. Apparatus for testing the burning quality of wrapper tobacco 38 



4. Construction of form on which leaf is wrapped for use in apparatus 



shown in iigure '■'. ■- - - 



5. Cross section of the root of Spigelia marUandica L . - 44 



6. Cross section of the root of Ruellia ciliosa Pursh 44 



100 ^ 



38 



