Statistics.See Wyatt, Agricultural Ledger (Calcutta, 1895), p. 71; Balfour, The Agricuttural Pests of India (1887), p. 13; Eriksson and Henning, Die Getreideroste; the publications of the U.S. Agricultural Department; the Kew Bulletin; Zeitschrift fr Pjlanzeiikrankheiten, and elsewhere.
Spraying, &c.See Lodeman, The Spraying of Plants (1896), and numerous references in the publications of U.S. Agricultural Department, Zeitschr.
Friedlander in Publications of the Society of Hebrew Lit., 1st ser.
See the publications of the United States Geological Survey (especially Professional Paper No.
The principal publications on heating are: Hood, Practical Treatise on Warming Buildings by Hot Water; Baldwin, Hot Water Heating and Fittings; Baldwin, Steam Heating for Buildings; Billings, Ventilation and Heating; Carpenter, Heating and Ventilating Buildings; Jones, Heating by Hot Water, Ventilation and Hot Water Supply; Dye, Hot Water Supply.