INDEX 



289 



Regular, applied to flowers in which the 

 parts of the same whorl are alike in 

 shape and size. 



Removal of animals to new locality, in- 

 fluence of, 15 



Retching, to strain while vomiting; to 

 suffer the spasmodic muscular con- 

 tractions of the stomach during 

 vomiting. 



Rheum rhaponticum, 229 



Rhizomes of grasses, 123 



Rhode Island bent grass, 129, 137 



Rhododendron calif ornicum, 95; cataw- 

 biense, 95; cinnabarinum, 95; maxi- 

 mum as a poisonous plant, 95 



Rhubarb, 229 



Rhus diversiloba, 81; metopium, 82; ra- 

 dicans, 80, 254; toxicodendron, 80; 

 vernicifera, as a poisonous plant, 81; 

 vernix, 81 



Ribbon-grass, 129 



Ribes americanum, 233; aureum, 233; 

 grossularia, 233; nigrum, 233; oxya- 

 acantha, 233; rubrum, 233 



Rib-grass, 213, 254; as a remedy for poison 

 ivy, 82 



Rice, 128 



Rice bean, 207 



Rice cultivation, 173; description of, 172; 

 distribution, 172; location of lands, 

 173; production, 155; soils, 172 



Rich and Jones, work of, 39 



Richardsonia scabra, 213 



Ricin, 19, 80 



Ricinin, 80 



Ricinus communis, 237; as a poisonous 

 plant, 80 



Ricketts, Dr. G. A., and poisoning by cow- 

 bane, 88 



Roberts, Percival, herd of heifers of, 93 



Robin, 19 



Robinia pseudacacia, 184, 185; as a poi- 

 sonous plant, 70 



Robinson, Martha, poisoned by Jimson 

 weed, 100 



Robitin, 70 

 19 



Roch's classification of poisonous fungi, 37 

 Root crops described, 225 

 Roots of grasses, 122 

 Rose bay as a poisonous plant, 95 

 Rosemary, 230 

 Roses, 230 

 Rosewood, 184 

 Rotation of corn, 161 

 Rotation, national system advocated, 237 

 Rotations of crops, 223 

 Rothamsted experiments, 224 

 Roughage, 118 

 Rough grama, 148 

 Rubiaceae, nodules on leaves of, 222 

 Rubber, 228 



Rubus nigrobaccus, 233; occidentalis, 233; 

 strigosus, 233; trivialis, 233; villosus, 



233 



Rudbeckia hirta, 267 

 Rumex Acetosella, 246, 254; crispus, 254, 



255 



Russian thistle, 246, 252 

 Russian vetch, 210 

 Rust of golden-rod, 31 

 Rutabaga, 225 

 Rye, 128; cultivation, 170; description of, 



170; production, 155; rotation of, 171 

 Rye grass, Italian, 141; perennial, 141 



Saccharin, graphic formula of, 17 



Saccharum omcinarum, 227 



Sachalin, 212 



Sainfoin, 184, 187, 208 



Salsify, 226 



Salivation, the formation of an excess of 



spittal, or saliva. 

 Salsola kali var. tenuifolia, 246 

 Salt bush, Australian, 212 

 Sand vetch, 210 

 Sanguinarin, 65 

 Sanguisorba minor, 213 

 Santonin, 89 

 Saponaria vaccaria, 267 

 Saponin, 58 

 Sapotoxin, 20, 58 



