Conn. (Storrs) Exp. Sta. Rept. 1886, pages 119-130.
Vt. Exp. Sta. Rept. 1890, pages 97-100.
Vt. Exp. Sta. Rept. 1891, pages 61-74.
N. Y. Exp. Sta. Rept. 1892, pages 299-392.
N. Y. Exp. Sta. Rept. 1893, pages 39-162.
Wis. Exp. Sta. Rept. 1890, pages 115-119.
Conn. (Storrs) Exp. Sta. Rept. 1907, pages 152-156.
N. Y. Exp. Sta. Rept. 1891, pages 139-142.
N. Y. Exp. Sta. Rept. 1894, pages 31-86, 118-121.
N. J. Exp. Sta. Rept. 1895, pages 136-137.