E.C. Dudgeon Electrical Treatment on Potato Crops, 1911 Agriculture, Botany TDGNHAS Series II, 24 (1911-12), 143(WARNING very large file size: 15.37 MB)
E.C. Dudgeon Electro-Culture: With Brief Account of Some Experiments conducted at Lincluden Mains Botany, Agriculture TDGNHAS Series III, 4 (1915-16), 88(WARNING large file size: 5.51 MB)
