184 SURVIVAL OK LAND AND SEA 
Plants, edible — Continued. Page 
fungi and lichen 164 
grasses ____ iQ5 
horseradish—— 105 
lotus_ 107 
mountain sorrel- 155 
palms 84,112 
pandanus, screw pine 87 
pokeweed 103 
purslane— 33,61 
rhubarb, wild 155 
rice 108 
seaweed 144, 157 
sugarcane 99 
sweet potato 100 
tapioca. 103,116 
taro 100 
tomatoes, wild 100, 116 
water lily 107 
Plants, poisonous kinds 119 
Plants for shelter 64 
Plants, tropical 83 
Plants for water 33, 59 
Poisonous animals and plants 119 
Pokeweed 103 
Polar bears 147 
Polaris (North Star), how to locate 25 
Polluted water, how to purify. 59, 171 
Polynesian arrowroot 91 
Polynesian chestnut 89 
Polynesia, Malaysia, and the Philippines, plants of 89, 100, 116 
Porcupine fish 49 
Ptarmigan 148 
Puffer, or swell fish 49 
Purslane, as thirst quencher 33 
Purslane, as food— . 91 
Pyrites ____________ 136 
Q 
Quinine, use of 72 
K 
Rabbits 145 
Rafts, navigation of 18 
Rafts, wood for building 62 
Rain water, how to collect 9 
Rattan 61, 66, 112 
Red bug (see: Mites). 
Reindeer moss, Arctic 164 
Religious rites, respect for 62 
Rengas tree— 122 
Reptiles, poisonous kinds of 16, 75 
Rescue craft, procedure in 6 
Rescue from Arctic localities 132 
