TABLE OF CONTENTS. 



CHAPTEE VIII. 



Babium Chlokide — Baeium Sulphate — Babium Carbonate — Barium Sulphocar- 

 BONATE — Calcium Oxide (Quicklime) — Calcium Sulphide — Calcium Chloride 

 — Calcium Chloro-hypochlorite (Bleaching Powder) — Calcium Sulphate — 

 (Gypsum Plaster of Paris) — Calcium Sulphite — Calcium Carbide — Calcium 

 Phosphide — Calcium Arsenite. 



PAGE 



39. Barium Chloride, BaClg 138 



Preparation - 138 



Properties 138 



Action of plants 138 



Action of insects 138 



Use against plant diseases 138 



Use against insects 138-9 



Use against rodents 139 



40. Barium Sulphate, BaS04. 



Use 139 



41. Barium Carbonate, BaCOg. 



Preparation 139 



Properties 139 



Use against rodents - 139 



42. Barium Sulphocarbonate, BaCSg. 



Preparation ------------ 139 



Properties 139 



Use 139 



43. Calcium Oxide (Quicklime), CaO. 



Occurrence 139 



Preparation - - - 140 



Properties . - - 140 



Use as manure - - 140 



Action on plants 141 



Use against fungi 142 



Use against gummosis of stone fruit trees 143 



Use against nematodes - - - - 143 



Use against insects ......--.- 144 



Liming of trees - - - - - - - - - - - 145 



Use against mammals ---------- 148 



Use against late frosts ---------- 148 



44. Calcium Monosulphide. 



Preparation 148 



Properties 148 



Action on plants 149 



Action on fungi 149 



Action on insects 149 



Uses 149 



Use as weedkiller - - • - 150 



Use against fungi ----------- 150 



Use against insects 151 



45. Calcium Chloride, CaClj. 



Preparation 152 



Properties - 153 



Use 153 



Use as weedkiller 153 



46. Chloride of Lime (bleaching powder), CaCljO. 



Preparation 153 



Properties . . . - 153 



Use 153 



Use as weedkiller ----------- 153 



Use against insects ....-----. 153-4 



47. Sulphate of Lime (gypsum), CaSO^. 



Occurrence ..----- 154 



