vi CONTENTS 



CHAPTER XIII. ALGAE IN WATER SUPPLIES 91 



How Growth of Algae in Water May Be Prevented, 94; The Use of 

 Algiciies, 94. 



CHAPTER XIV. A CATALOGUE OF THE MORE IMPORTANT POISONOUS PLANTS 



OF THE UNITED STATES AND CANADA ... 96 



Literature, 96; Euthallophyta, Schizophyta, Schizomycetes. Bacteria, 97; 

 Euphyceae Algae, 98; Eumycetes Fungi; Phycomycetes. Black 

 Molds and Downy Mildews, 98; Smuts, 98; Rusts, 99; Toadstools, 99; 

 Ascomycetes, 100; Fungi Imperfecti, 100; Embryophyta, Pteridophyta, 

 100; Embryophyta siphonogama; Flowering Plants; Gymnospermae, Con- 

 ifers and Allies, 101; Angiospermae, 102; Monocotyledoneae, 102; Grass 

 Family, 102; Lily Family, 103; Dicotyledoneae, 105; Nettle Family, 106; 

 Pink Family, 107; Crowfoot Family, 108; Poppy Family, 112; Rose 

 Family, 115; Pulse Family, 117; Spurge Family, 121; Poison Ivy Family, 

 122; Carrot Family, 126; Heath Family, 127; Nightshade Family, 131; 

 Composite Family, 137. 



CHAPTER XV. CHEMISTRY OF ALKALOIDS, GLUCOSIDES, ETC. . . .143 



Composition and General Properties of Alkaloids, 143; Occurrence of the 

 Alkaloids, 144; Classification of the Alkaloids, 145; On Alkaloids, 147; 

 Glucosides, 148; Gluco-Alkaloids, 149; Saponins, 149; Picrotoxin, Cicu- 

 toxin and Toxins, 149; Other Vegetable Poisons, 149; Amins, 149; Or- 

 ganic Acids, 150. 



