For assistance of many kinds in preparing this book the thanks of the author are gratefully offered to Mr. Frederick William Gookin, Mr. Howard Mansfield, Mr. William S. Spaulding, Mr. John T. Spaulding, Mr. Judson D. Metzgar, Mr. Charles H. Chandler, Mr. John Stewart Happer, Col. Henry Appleton, Mrs. Arthur Aldis, Mr. Ernest Oberholtzer, and Mr. Charles August Ficke. Though...