March 1938

In this issue

The text centers on scientific expeditions down the Colorado River. It highlights the meticulous planning, technological advancements, and collaborative spirit necessary to overcome the river's formidable challenges for scientific gain.

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Chapters

• 

  SHOOTING THE RAPIDS-

  H. G. Franse

• MAPPING ARIZONA

  C. C. HUSKINSON,Mrs. White Mountain Smith

• 

  EL DESIERTO PINTADO

  Mrs. White Mountain Smith

• 

  PADRE KINO AND THE MISSIONARIES

  RUFUS KAY WYLIE

• 

  "BIENVENIDOS A SONORA"

  RAYMOND CARLSON

• 

  FROM EGG TO EAGLE

• 

  HERE LIE THE BODIES

  JOSEPH MILLER,BISHOP MOB

• 

  HIGHWAY COMMISSION NOTES

• 

  PROJECTS UNDER CONSTRUCTION

  C. H. OGLESBY