vi. i Illustrations 



FACING 

 PAGE 



MR. TOMPKINS "DowsiNo" IN SOUTH AFRICA ..... 585 



THE EARLIEST KNOWN ILLUSTRATION OF THE USE OF THE DIVINING ROD 

 APPLIED TO THE FINDING OF PRECIOUS METALS. (From G. A. Agricola's 

 treatise on Mining, published in 1557.) ...... 592 



AN ILLUSTRATION FROM AN OLD FRENCH BOOK ON "JACOB'S ROD," PUB- 

 LISHED AT PARIS IN THE YEAR 1693 592 



ILLUSTRATION FROM AN OLD FRENCH WORK PUBLISHED IN THE YEAR 1693 



SHOWING VARIOUS WAYS OF HOLDING THE DIVINING ROD . . 593 



Coco-NuT PALMS NEAR AQUADILLA (PORTO Rico) .... 600 

 Photo: Underwood & Underwood. 



SECTION OF AN OAK-TREE ......... 601 



Photo: F. R. Hinkins & Son. 



CROSS SECTION OF THE STEM OF THE BUTCHER'S BROOM . . . 601 

 Photo: F. R. Hinkins & Son. 



THE BIG TREES OF CALIFORNIA (Sequoia gigantea) .... 604 

 Photo: H. J. Shepstone. 



Victoria Regia, THE GIANT WATER-LILY OF THE AMAZON . . . 605 

 Photo: Underwood & Underwood. 



HORSE-CHESTNUT (JEsculus hippocastanum') .... . 608 



Photo: J. J. Ward. 



DODDER (Cuscuta cpithymum) ........ 609 



Photo: James's Press Agency. 



ROOTS OF THE WILD WHITE CLOVER, SLIGHTLY ENLARGED, SHOWING THE 



LITTLE ROOT TUBERCLES ......... 609 



Photo: J. J. Ward. 



THE COMMON SUNDEW (Drosera rotundifolia) ..... 612 

 Photo: James's Press Agency. 



How THE SUNDEW CAPTURES INSECTS . . . . . . .612 



Photo: J. J. Ward. 



VENUS FLY-TRAP (Dioruea muscipula) 612 



Photos: S. Leonard Bastin. 



MINIATURE JAPANESE TREES OF THE CHABO VARIETY, WITH THEIR ROOTS 



EXPOSED ......... 6J3 



Reproduced by permission from the Scientific American. 



ROOTS OF BEECH-TREE 613 



Photo: J. J. Ward. 



