INDEX 



353 



Manure, 302. 

 Maple, 109. 

 Megaspore, 345. 

 Microspore, 345. 

 Misconceptions, some funda- 

 mental, 320. 

 Mold, 225. 

 Mosses, 341. 

 Mushrooms, 224. 

 Mutation, 337. 



Natural selection, 335. 

 Nature Study, agriculture, i. 



biology, 9. 



children, 75. 



dangers, 29. 



educative result, 17, 25. 



mission, n. 



obstacles, 12. 



principles, 46. 



science, 16. 



sentiment, 16. 



spirit, 60. 

 Nucleus, 325. 



Oats, study, 255. 

 Observation, 53. 

 Osmosis, 289. 

 Outlines, topical, 82. 



typical, 107. 



use, 41. 

 Ovule, 349. 



Persistence, 70. 

 Petals, 346. 



Photosynthesis, 296, 328. 

 Physical experiments, 235. 



observations, 89, 93, 97, 100. 

 Physiology, 288, 324. 

 Pistil, 346. 



Plant breeding, 214. 



products, 259. 



work, 288. 

 Pollen, 348. 



Pollination, 210, 331, 347. 

 Primary grades, work, 76. 

 Products, plant, 259. 

 Progressive work, 80. 

 Proof, nature of, 27. 

 Pro thallium, 343. 

 Protoplasm, 324. 

 Protoplasts, 324. 



Reproduction, 330. 

 Respiration, 298, 327. 



misconception, 322. 

 Roots, absorption of water, 



290. 



Rotation of crops, 300. 

 Rural schools, gardening, 203. 



outline, 153. 



suggestions, 158. 



School garden, 24, 314. 



for different grades, 318. 

 Second-grade work, 85, 109. 

 Seed habit, 348. 



plants, 346. 

 Seeds, formation of, 210. 



germination of, 249. 

 Sentimentality, 38. 

 Sepals, 346. 

 Seventh-grade work, 102, 140, 



144, 207. 

 Sex, 340. 



Shelter, 83, 84, 85, 86. 

 Sixth-grade work, 99, 136. 

 Sketching, 51. 

 Sky, 99. 

 Soil, 94, 103. 



