"The complete history of the 75-millimeter field gun would extend back over many years, but the present record is concerned with the period dating from the entrance of the United States into the World War, and the supply of the guns, with attendant vehicles and equipment, to the United States Army. The vehicles include gun-carriages, limbers, caissons, caisson limbers, battery wagons, forge limbers, store wagons, store limbers, combination battery and store wagons and limbers, battery reels, at times referred to as two-horse reels and to such headquarters reels and carts, at times referred to as six-horse reels and carts, as pertain to the 75-millimeter program."--Pages 11-12.

Early history of 75-millimeter field gun program --Reference to conditions and views as outlined by French Inspector General of Artillery -- Similarity of some of America's problems with those of England -- Reasons bearing on selection of the several models -- Carriages; with particular reference to recoil mechanisms and trails -- Vehicles -- Review of conditions to May 1, 1918, together with reference to establishment of board of officers to review the artillery program -- Visualization of needs to August 1, 1918, as indicated by Gen. Pershing's report -- The progress of the matériel from May 1, 1918, to August 1, 1918 -- Events in the War Zone from August 1, 1918, to October 1, 1918 -- The progress of the matériel from August 1, 1918, to October 1, 1918 -- Events in the War Zone from October 1, 1918, to signing of armistice, November 11, 1918 -- The progress of the matériel from October 1, 1918, to signing of armistice, November 11, 1918 -- Post-armistice action -- Record of orders and deliveries -- Cancellations and adjustments -- Summary -- Appendix -- Earlier reports referred to in Chapter I -- Tabular description of the several models referred to in Chapter I -- Cablegrams referred to in Chapter III -- Approved recommendations, dated July 2, 1918, by the board of officers to review the artillery program as referred to in Chapter VII -- Digest of pertinent happenings, May 1, 1918, to August 1, 1918, as referred to in Chapter IX -- Record of orders and deliveries as referred to in Chapter XV -- Memorandum of points brought out in conversation with a battery commander of the second division, March 19, 1919 -- Memorandum of points brought out in conversation with the commander of the first mobile repair shop attached to the first division, March 21, 1919 -- Additional notes, March 24, 1919 -- Additional notes, June 18, 1919 -- Extracts from A. E. F. report regarding 75-millimeter matériel, French model 1897 -- Board of officers to make a thorough study of the armament and types of artillery matériel to be assigned to a field army.