Some of the plates, maps, tables and diagrams are folded Running title: Concentration of economic power Joseph C. O'Mahoney, chairman pt. 1. Economic prologue. Dec. 1-3, 1938 -- pt. 2. Patents ; automobile industry ; glass container industry. Dec. 5-6, 12-16, 1938 -- pt. 3. Patents ; proposals for changes in law and procedure. Jan. 16-20, 1939 -- pt. 4. Life insurance. Metropolitan life insurance co. ; New York life insurance co. ; Acacia mutual life insurance co. ; Mutual life insurance co. of New York ; Prudential life insurance co. of America ; Northwestern mutual life insurance co. Feb. 6-10, 14-17, 1939 -- pt. 5. Monopolistic practices in industries ; development of beryllium industry. Feb. 28, Mar. 1-3, 6-8, 14, May 8-9, 1939 -- pt. 5-A. Federal trade commission Report on monopolistic practices in industries. Mar. 2, 1939 -- pt. 6. Liquor industry. Mar. 14-17, 1939 -- pt. 7. Milk industry. Poultry industry. Mar. 9-11, May 1-3, 1939 -- pt. 8. Problems of the consumer. May 10-12, 1939 -- pt. 9. Savings and investment. May 16-18, 22-26, 1939 -- pt. 10. Life insurance. Intercompany agreements, terminations, savings bank insurance, legislative activities. June 6-7, 13-16, 20-21, 1939 -- pt. 10-A. Life insurance. Operating results and investments of the twenty-six largest legal reserve life insurance companies domiciled in the United States, 1929-1938. Feb. 12, 1940 -- pt. 11. Construction industry. June 27-29, July 6-7, 11-14, 1939 -- pt. 12. Industrial insurance. Aug. 23-25, 28-31, and Sept. 5-7, 1939 -- pt. 13. Life insurance. Travelers insurance