Pl.\te X. — .-{'■" ■. I i.iirtosy Tniman G. PnlnnTi iihuiiiiiLr suRur- 

 beets, Colorado ; tlie extending arms are used a.-s markers ; center, 

 (Courtesy Union Sugar Co.) two engines with connecting cables pull- 

 ing machinery in beet fields, California : below, (Courtesy Facts About 

 Sugar) cultivating and hoeing sugar-beets, Iowa. 



