NOTE. 
The 14 parts of volume 16 of the Contributions were issued as 
follows: 
Part 1, pages 1 to 24, February 13, 1912. 
Part 2, pages 25 to 62, June 19, 1912. 
Part 3, pages 63 to 108, July 6, 1912. 
Part 4, pages 109 to 196, February 12, 1913. 
Part 5, pages 197 to 224, February 11, 1913. 
Part 6, pages 225 to 238, February 21, 1913. 
Part 7, pages 239 to 242, April 10, 1913. 
Part 8, pages 243 to 254, May 14, 1913. 
Part 9, pages 255 to 262, June 6, 1913. 
Part 10, pages 263 to 276, December 13, 1913. 
Part 11, pages 277 to 286, December 13, 1913. 
Part 12, pages 287 to 298, August 23, 1913. 
Part 13, pages 299 to 308, December 29, 1913. 
Part 14, pages 309 to 371, February 10, 1916. 
IV 
