278 QUESTIONS. 



fertilize? Embryo? 150. What commonly happens when the seeds 

 are fertilized? Ovary become? Meant by germinate? 151. The 

 fruit? Organs? Instances? Organic substances? Inorganic? 152. 

 What happens when the seed is put into the ground ? 153. Cotyledons ? 

 What are they unlike ? 154. Dicotyledonous plants ? 155. The 

 Plumule? How does it grow? 15G. Monocotyledonous plants? 

 Describe the growth of one. 157. The organs of the stem of u tree ? 

 External? The trunk? Branches? Limbs? Branchlct? Spray? 

 Twigs ? 158. A shoot grow ? Terminal bud ? Axillary bud ? The 

 axil? 159. The internal organs ? 1GO. The usual course of plants? 

 Annual? Biennial? Perennial ? 161. Why should grain be ever 

 cut before the seed is quite ripe ? 162. The necessity of classification ? 

 103. The artificial system? 164. How are plants now divided? A 

 natural family? Give an example. 165. A genus (plural, genera) ? 

 A species ? Give an example showing the meaning of class, family, 

 genus and species. 166. How does the practical use of classification 

 appear ? It will be well for the teacher to consider whether the names 

 of the families ought to be learnt. If so, let them be learnt thoroughly. 

 167. Some of the plants which belong to the Pulse Family ? Use ? 

 168. Cress Family, character, &c., of all the rest ? 169. Flax Fam 

 ily? 170. Hose? What kind of flowers? Fruits ? 171. Gourd? 

 172. Currant? 173. Parsley? Sunflower? Sage or Mint? Convolvu 

 lus? Nightshade? Character? Give an instance. Olive? Heath? 

 Goose-foot? Buckwheat? Walnut? Birch? Willow? Pine? 

 Class of those that have been mentioned ? Of those to be mentioned ? 

 Lily Family? Amaryllis? Iris? Orchis? Rush? Sedge? 192. Cereal 

 grains? Character of the Grass Family? 193. Mosses? 194. Li 

 chens ? 195. Difference between a tree, a shrub and an undershrub ? 

 Undershrubs ? Preparation for planting of perennial plants ? 197. 

 Alimentary plants ? Forage ? 198. Origin of cultivated plants ? Of 

 Indian, corn ? 199. How have they been improved ? Give examples. 

 The most striking ? 200. Whence come the good qualities of most 

 cultivated plants ? Of animals subject to man ? What is likely to 

 happen to children left to themselves ? 



CHAPTER VII. 201. Essential to the- formation, of plant-cells ? 

 What como from carbonic acid ? from ammonia ? The history of 

 CO 2 and Nil 3 ? Whence may O and II come? N and ? 202. 

 What power must the simplest plant have ? 203. The osmotic power ? 

 Experiment shows its action ? Endosmose ? Exosmose ? Effects are 

 produced by this power in plants ? in animals ? 204. Why must water 

 be abundantly supplied to growing plants ? 205. The most indispensa- 



