XVI 



Handbook of Nature-Study 



Pag 



The Fruiting of the Fern 693 



The Field Horsetail 699 



The Hair-cap Moss, or Pigeon Wheat 702 



Mushrooms and other Fungi 706 



Puffballs 712 



The Bracket Fungi 714 



Hedgehog Fungi 717 



The Scarlet Saucer 718 



The Morels 719 



The Stinkhorns 720 



Molds 720 



Bacteria 723 



IV Tree Study 



How a Tree Grows 726 



How to Begin Tree Study 731 



How to Make Leaf Prints 734 



The Maples 736 



The American Elm 745 



TheOak 748 



The Shagbark Hickory 755 



The Chestnut 757 



The Horse-Chestnut 761 



The Willows 765 



The Cottonwood or Carolina Poplar 770 



The White Ash 774 



The Apple Tree 778 



How an Apple Grows 782 



The Apple 785 



The Pine .789 



The Norway Spruce 796 



The Hemlock . . 801 



The Flowering Dogwood . 803 



The Staghorn Sumac 806 



The Witch-Hazel 810 



The Mountain Laurel 813 



PART IV 

 EARTH AND SKY 



The Brook 818 



How a Brook Drops its Load 822 



Crystal Growth 825 



Salt 827 



How to Study Minerals-. . . . 828 



Quartz : . . 829 



Feldspar . 831 



Mica 832 



Granite 833 



Calcite, marble and Limestone 835 



The Magnet 838 



The Soil . . . 842 



