VI 
CONTENTS. 
Chapter V. — Seeds Transported by Wind. 
PAGE 
17. How pigweeds get about 30 
18. Tumblewe'eds 31 
19. Thin, dry pods, twisted and bent, drift on the snow . . . .35 
20. Seeds found in melting snowdrifts 36 
21. Nuts of the basswood carried on the snow 37 
22. Buttonwood balls 39 
23. Seeds that tempt the wind by spreading their sails . . . .40 
24. Why are some seeds so small ? 42 
25. Seeds with parachutes 43 
26. A study of the dandelion 44 
27. How the lily sows its seeds 46 
28. Large pods with small seeds to escape from small holes ... 47 
29. Seeds kept dry by an umbrella growing over them . . . .48 
30. Shot off by wind or animal 50 
31. Seed-like fruits moved about by twisting awns . . . . .51 
32. Grains that bore into sheep or dogs or the sand .... 51 
33. Winged fruits and seeds fall with a whirl 52 
34. Plants which preserve a portion of their seeds for an emergency . 54 
Chapter VI. — Plants that Shoot Off their Spores or Seeds. 
35. Dry pods twist as they split open and throw the seeds . . . .57 
36. A seed case that tears itself from its moorings 59 
Chapter VII. — Plants that are Carried by Animals. 
37. Squirrels leave nuts in queer places and plant some of them . . 61 
38. Birds scatter nuts 63 
39. Do birds digest all they eat ? .64 
40. Color, odor, and pleasant taste of fruits are advertisements . . 65 
41. The meddlesome crow lends a hand 68 
42. Ants distribute some kinds of seeds 69 
43. Cattle carry away living plants and seeds 70 
44. Water-fowl and muskrats carry seeds in mud 71 
