Power in the Past -- Revolution in Agriculture / Harold E. Pinches -- A Stout Man to Bear on / Dorothy R. Rush -- Tools of Former Days -- Power in the Present -- The Development of the Tractor / E.M. Dieffenbach / R.B. Gray -- Using Wheels to Move Farm Loads / Jordan H. Levin -- A Machine Is Produced / C.B. Richey -- The Place of Petroleum / Howard F. McColly -- Electricity Comes to Farms / John H. Rixse, Jr. -- Farmers Use Electricity / T.E. Hienton / J.P. Schaenzer -- Telephones for Farmers / E.C. Weitzell -- Radio and Television / Layne Beaty -- The Role of a Free Press / L.E. Childers -- The Place of Publications / Lyman J. Noordhoff -- Power on the Land -- Remaking the Land / G.E. Ryerson -- Machines for Clearing Land / T.W. Edminster / G.E. Ryerson -- Machines for Conservation / Dwight D. Smith / James J. Coyle -- Engineering for Drainage / William W. Donnan / John Sutton -- Aids for Irrigation / Tyler H. Quackenbush / Marvin E. Jensen -- Modifying Soil Profiles / R.M. Marshall / W.A. Raney -- Remaking Our Watersheds / Howard Matson / L.L. Kelly -- Plowman's Progress / M.L. Nichols / A.W. Cooper -- Preparing the Seedbed / W.G. Lovely / G.R. Free / W.E. Larson -- Management of Fallow / J.S. Robins / B.D. Blakely -- Planting and Fertilizing / Elmer B. Hudspeth, Jr. / Richard F. Dudley / Henry J. Retzer -- Engineering for Crop Protection / Orve K. Hedden / Ross D. Brazee -- Aircraft in Agriculture / David A. Isler -- Power in the Harvest -- Swift, Untiring Harvest Help / Herbert F. Miller, Jr. -- Outrunning Time; Combating Weather / W.V. Hukill / Robert A. Saul / Daniel W. Teare.

Preparation of Product / Arthur E. Browne / William M. Bruce -- Harvesting the Woods / Fred C. Simmons -- Power and Livestock -- New Barns for Old / Norman C. Teter / Henry Giese -- Environment of Animals / T.E. Bond / C.F. Kelly -- Machines to Help With Chores / H.B. Puckett -- Engineering the Farmstead / J.W. Rockey / S.S. DeForest -- Change on the Range / Robert O. Gilden / F.G. Renner -- Power in the Market -- The Right Product; The Right Place / J.K. Samuels -- Changes in Marketing Facilities / William C. Crow -- Mechanization of Handling / William H. Elliot -- Railroads, Trucks, and Ships / John C. Winter -- Measuring and keeping Quality / Harold T. Cook -- Power and Efficiency -- Efficiency of Labor / Reuben W. Hecht / Eugene G. McKibben -- Development and Application / R.L. Green / N.L. LeRay -- Engineering and Biology / K.H. Norris / W.T. Pentzer -- Costs of Farm Machinery / James Vermeer / Donald T. Black -- Management of Machines / Kenneth K. Barnes / Paul E. Strickler -- Obsolescence of Buildings / Wallace Ashby / M.M. Lindsey -- Costs of Farm Buildings / Roy N. Van Arsdall / Wallace Ashby -- Power and Its Effects -- Technology and Capital / Wylie D. Goodsell -- Financing Capital Requirements / Fred L. Garlock -- Agribusiness in the Machine Age / Earl L. Butz -- Change and Employment / William H. Metzler -- Machines and Farm Organization / Orlin J. Scoville -- Work Simplification / Lowell S. Hardin -- Technology in Homes / Earl C. McCracken / Avis M. Woolrich / Emma G. Holmes -- Power in the Future -- Mechanization and Automation / Carl W. Hall -- Systems Engineering in Agriculture / L.L. Sammet -- Machines for New Crops / Leonard G. Schoenleber -- The Dynamics of Structures / Mark E. Singley -- Marketing in the Future / Harry C. Trelogan -- Electric and Telephone Systems / R.W. Lynn / J.E. O'Brien -- Benefits for All / Frederick V. Waugh.