XIV CIRCULARS OF THE BUREAU OF PLANT INDUSTRY. 
Page. 
Circular No. 3. — Some Stem Tumors or Knots on Apple and Quince 
Trees — Continued. 
Fig. 7. Longitudinal section of a tumor on an apple limb after throwing 
out roots when placed in soil 11 
8. Longitudinal section of woolly-knot on a root-grafted apple tree 
grown from apparently healthy scion and root 11 
9. The woolly-knot form of hairy-root on a Northern Spy apple tree 
grown in an experiment 12 
10. The simple form of hairy-root on an apple seedling grown in an 
experiment 13 
11. The origin of hairy-root from Inn Is on an apple seedling 13 
Circular No. 6. — The Cultivation and Handling of Goldenseal. 
Fig. 1. A flowering plant of goldenseal 7 
2. A fruiting plant and a fruiting branch of goldenseal 8 
3. Rhizome, or rootstock, of goldenseal 9 
4. Rhizome, after division 14 
5. Plant formed from bud on fibrous root of goldenseal 15 
6. Seedlings of goldenseal 16 
7. Goldenseal, showing bud on fibrous root 17 
Circular No. 9. — Texas Root-Rot of Cotton: Field Experiments in 1907. 
Fig. 1. Experimental plats of cotton at Petty, Tex., showing the results 
of deep fall plowing (5 
Circular No. 16. — A New Basis for Barley Valuation and Improvement. 
Fig. 1. High-grade Swedish pedigree barley 6 
2. Low-grade barley sold on the Milwaukee market 7 
3. Malted barley from Pilsen, Austria 8 
Circular No. 19. — TnE Decay of Florida Oranges while in Transit and on 
the Market. 
Fig. 1. An interior view of a packing house in Florida, showing the large 
hopper used for delivering orange- to the sizing machine 6 
2. Interior view of a packing house in California, showing the 
machinery used in preparing oranges for shipment 7 
Circular No. 20.— An Electrical Resistance Method for the Rapid De- 
termination of the Moisture Content of Grain. 
Fig. 1. Chart showing the relation between the moisture content and the 
electrical resistance of wheat 4 
2. Chart showing the influence of temperature upon the electrical 
resistance of wheat, a 
3. Chart for determining the moisture content of wheat when the 
electrical resistance and temperature are known 7 
Circular No. 22. — Farm Methods of Applying Land Plaster in Western 
Oregon and Western Washington. 
Fig. 1. Field showing the effect of land plaster on clover 5 
2. An implement for distributing laud plaster devise. 1 by Mr. Clar- 
ence Kiiim, Lane County, Oreg 6 
3. Cro-s section of the box of the land-plaster distributer shown in 
figure 2 6 
4. The lever of the land-plaster distributer shown in figure 2 com- 
plete as it rests upon the board that sup] ports it s 
5. The lever of the land-plaster distributer shown in figure 2 8 
