Strong vegetable shoots and roots bound with wire, in part debarked, whence leaf-buds converted into flower-buds. Theory of this curious fact 463
Branches bent to the horizon bear more fruit 466
Engrafting of a spotted passion-flower produced spots upon the stock.
Apple soft on one side and hard on the other 483
Cyprepedium assumes the form of a large spider to affright the humming- bird. Fly-ophris. Willow-wren sucks the honey of the crown-imperial 505
Diseases of plants four kinds. Honey-dew 511
Ergot a disease of rye 513
Glass unannealed. Its cracks owing to elasticity. One kind of lead-ore cracks into pieces. Prince Rupert's drops. Elastic balls 519
Sleep of plants. Their irritability, sensibility, and voluntary motions 538