| 1 | The Publishers' and Stationers' Weekly Trade Circular, 
      May 23, 1872. | 
   
    | 2 | Ibid., January 9, 1873. | 
   
    | 3 | Ibid., November 28, 1872. | 
   
    | 4 | Ibid., January 9, 1873. | 
   
    | 5 | New York Tribune, May 31, 1873. | 
   
    | 6 | Ibid., June 2, 1873. The second edition was announced 
      as ready June 7. | 
   
    | 7 | The Publishers' Weekly, June 28, 1873. | 
   
    | 8 | Ibid., September 6, 1873. | 
   
    | 9 | Publishers' Weekly, October 18, 1873. | 
   
    | 10 | Ibid., November 15, 1873. | 
   
    | 11 | New York Sun, March 9, 1875. It was originally 
      announced for March 4, but was postponed to March 10th, yet came out on 
      the 9th. | 
  
    | 12 | Ibid., March 20, 1875. | 
   
    | 13 | Advertised as "Ready early in October," 
      in The Publishers' Weekly, XII, September 22, 1877, 349, and as "Issued 
      during the past week," in the number for October 6, 1877, 394. | 
  
† Correction made as per Volume 3.