CONTENTS ix 



BACTERIA 



PAGES 



Nature of Bacteria — Groups of Bacteria — Nitrification induced 



by Bacteria, ......... 30-31 



FUNGICIDES 



Nature of Fungicides — Solutions — Powders — Bordeaux 

 mixture — Ammoniacal solution of copper carbonate — 

 Potassium sulphide solution — Iron sulphide solution — 

 Permanganate of potash solution — Sulphur — Lime — 

 Resin wash — ^Jensen's hot-water treatment for wheat and 

 oat smut — Paraffin — Formalin — Lysol — Resin compound 

 — Fumigation with hydrocyanic acid gas — Sterilising soil 

 — Poisonous properties of fungicides, .... 31-47 



ECONOMIC CONSIDERATIONS 



Statistics relating to losses caused by grain rust in Prussia^ 

 Loss through rust of wheat in Australia — Destruction of 

 vineyards in the United States caused by fungi, , . 47-51 



SPRAYING 



Various methods of spraying — Spraying apparatus, . . 51-53 



FUNGOUS PARASITES 



Descriptions, with preventive and curative methods, of the 

 various kinds of parasitic fungi attacking plants of 

 economic importance, ....... 53"334 



MYXOGASTRES 



Description of the diseases popularly known as ' Finger-and- 



toe ' and Brunissure, ... ... 334-338 



