CONTENTS. IX 



New York State Station: Page. 



Bulletin 360, February, 1913 22 



361, March, 1913 41, 42 



362, February, 1913 40 



363, April, 1913 473, 474 



364, July, 1913 838 



365, August, 1913 878 



Technical Bulletin 26, December, 1912 9 



27, March, 1913 279 



28, March, 1913 253 



29, March, 1913 222 



30, July, 1913 762 



31, September, 1913 805 



Circular 20, January 22, 1913 355 



21, February 10, 1913 354 



22 339 



23, March 4, 1913 356 



24, March 20, 1913 339 



Thirty-first Annual Report, 1912 812, 899 



North Carolina Station: 



Thirty-fifth Annual Report, 1912 21, 31, 35, 49, 50, 52, 56, 69, 76, 77, 95 



North Dakota Station: 



Bulletin 103, March, 1913 634 



104, April, 1913 690 



105, August, 1913 788 



Special Bulletin, vol. 2, No. 12, January, 1913 661 



13, February, 1913 661 



14, April, 1913 661 



15, May, 1913 659, 661 



16, June, 1913 661 



17, July, 1913 803,865 



18, August, 1913 803, 865 



19, September, 1913 803, 811, 865 



Third Annual Report Williston Substation, 1910 209, 211, 225, 299 



Fourth Annual Report Williston Substation, 1911 209, 211, 226, 237, 299 



Fifth Annual Report Williston Substation, 1912 415, 424, 496 



Ohio Station: 



Bulletin 247, June, 1912 32 



248, June, 1912 87 



249 (Thirty-first Annual Report, 1912), July, 1912 722, 793 



250, August, 1912 51 



251, September, 1912 257 



252, December, 1912 41 



253, December, 1912 653 



254, December, 1912 746 



255, January, 1913 807, 861 



256, February, 1913 31, 42, 82 



257, February, 1913 36 



258, February, 1913 137 



Circular 131, February 25, 1913 213 



132, April 2, 1913 432 



133, April 15, 1913 436 



134, April 25, 1913 674 



135, May 1, 1913 775 



