2. Where and when do you find Frog’s eggs? Of what use is the jelly with which they are surrounded? 3. How does the Tadpole swim, and how does the Frog swim? How does the Frog jump, and how does it catch a fly? 4. Contrast the characters of the mouth (including teeth if present) in the Frog, Bird, Cat, Rabbit and Sheep. 5. Describe the characteristic modes of locomotion in the Bird, Dog, Rabbit and Bat, and point out any peculiarities of the skeleton which are related to these habits. 6. Describe the heart of the Sheep, and account so far as you can for any differences you can point out between the various chambers. 7. In what way are bees useful to flowers? Explain in any one example you choose what happens when a bee visits the flower. 8. Describe the roots of a pea or bean. What importance do you attach to the different parts you mention? 9. What is starch? How would you show whether or not it was present in a leaf? What conditions are necessary in order that the leaf may produce it? 10. Describe the fruit of either the Sycamore or the Poppy, and explain the uses of the different parts in dispersing the seed. 11. Describe how you would proceed in arranging an experiment to enable you to study the germination of a seed. Give a brief account of the process of germination of any seed you may select. 12. Describe and sketch the specimen provided, and explain, as far as you can, the use of the different parts. [Pg 428] INDEX. Acorn, 141, 144, 146, 175, 177 Air, carbon dioxide in, 31, 33 Air-chamber of hen’s egg, 283, 285 Air sacs of birds, 279 Albumin, 285 Alder, 142, 149 Allantois, 289, 293 Alternation of generations, 189, 196 Amnion, 288, 290 Anemone, 97, 98 Animals and plants, resemblances and differences, 243 Annual, meadow grass, 135; rings, 73 Anterior, 217 Anther of stamen, 91 Aorta, 236, 238 Appendages of crayfish and lobster, 373, 375 Apple, 104, 106; fruit of, 176, 179 Apricot, 106 Aquarium, a simple, 340 Arachnids, 378 Arteries, 237, 238 Arteries, pulse in, 235, 239 Arthropods, 351 Arum, 122 Ash, 153, 156; fruit of, 171, 173; mountain, 157 Aspen, 152 Auricles of heart, 235, 237 Awn, 129, 130, 131 Axil of leaf, 45, 47 Backbone, of pigeon, 269; of rabbit, 217, 222, 227 Bacteria, 209 Balancers of hen’s egg, 283, 285 Bark, 74 Bast, 71, 72 Bat, 255, 256 Bean seed, 1, 2, 5; germination of, 9, 13; starch in, 2 Beech, 142, 145, 147; fruit of, 175, 178 Beetle, a water, 357 Beetles, 362 Berries, 175, 179 Biennials, 31, 96 Bile, 232, 234 Birch, 142, 147, 148 Birds, 269 Bird’s foot trefoil, 102 Black bent, 135 Blackberry, 103, 105; fruit of, 175, 179; leaves, 38, 41, 105 Blackbird, 302, 307 Bleeding of stems, 67, 70 Blood, 233, 235, 242; circulation of, 235; red corpuscles of, 237, 242 Blue mould, 207, 208 Bone, structure of a long, 223, 228 Bones, of birds, 269; of pigeon, 274;