Elementary Biology, Animal and HumanMacmillan, 1912 - 406 頁 |
其他版本 - 查看全部
常見字詞
abdomen alcohol animals anther arteries bacteria bark bees biology birds blood body bones bottle butterfly called carbon dioxid cavity cells chemical chemical elements chlorophyll color composed compound cotyledons covered crayfish crops cross-pollination Describe develop digestion egg-cell embryo energy epidermis experiment Fehling's solution fertilized fins fish floral envelopes flowers food substances frog fruit gill glass grape sugar green growth hydrogen inches insects intestine kinds known Label Laboratory Study larvæ layer leaf leaves legs lime water liquid living lungs malaria material membrane microscope mineral matters mosquito moth mouth muscles nucleus nutrients Optional organs outer ovary ovule oxidation oxygen pansy petal piece pistil plants pollen grains preparation produced protein protoplasm region root-hairs roots seedling seeds side soil soil-water spores stamens starch stem stigma stoma stomach structure surface test tube thistle tube tiny tion trees tumbler veins wall wings woody
熱門章節
第 157 頁 - I suppose, have thus suffered; and if I had to live my life again, I would have made a rule to read some poetry and listen to some music at least once every week; for perhaps the parts of my brain now atrophied would thus have been kept active through use.
第 155 頁 - Could the young but realize how soon they will become mere walking bundles of habits, they would give more heed to their conduct while in the plastic state.
第 156 頁 - As we become permanent drunkards by so many separate drinks, so we become saints in the moral, and authorities and experts in the practical and scientific spheres, by so many separate acts and hours of work.
第 32 頁 - For they covered the face of the whole earth, so that the land was darkened; and they did eat every herb of the land, and all the fruit of the trees which the hail had left; and there remained not any green thing in the trees, or in the herbs of the field, through all the land of Egypt.
第 99 頁 - AMERICAN ORNITHOLOGISTS' UNION. An Act for the Protection of Birds and their Nests and Eggs. Section i. No person shall, within the State of- , kill or catch or have in his or her possession, living or dead, any wild bird other than a...
第 155 頁 - I won't count this time." Well ! he may not count it, and a kind Heaven may not count it ; but it is being counted none the less. Down among his nerve cells and fibers the molecules are counting it, registering and storing it up to be used against him when the next temptation comes.
第 157 頁 - My mind seems to have become a kind of machine for grinding general laws out of large collections of facts ; but why this should have caused the atrophy of that part of the brain alone on which the higher tastes depend, I cannot conceive.
第 156 頁 - Let no youth have any anxiety about the upshot of his education, whatever the line of it may be. If he keep faithfully busy each hour of the working day, he may safely leave the final result to itself. He can with perfect certainty count on waking up some fine morning to find himself one of the competent ones of his generation, in whatever pursuit he may have singled out..
第 70 頁 - The use of intoxicants by employes while on duty is prohibited. Their habitual use, or the frequenting of places where they are sold, is sufficient cause for dismissal.
第 155 頁 - There is a story, which is credible enough, though it may not be true, of a practical joker, who, seeing a discharged veteran carrying home his dinner, suddenly called out, 'Attention!' whereupon the man instantly brought his hands down, and lost his mutton and potatoes in the gutter. The drill had been thorough, and its effects had become embodied in the man's nervous structure...