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aeriform arrangement attraction ball boat body boiling called cause centre of gravity centrifugal force clouds cold compressed condensed conductor convex lens cornea distance downward drop earth effect elastic electricity equal example Explain Fig Explain the operation fall farther feet fluid force friction fulcrum gases Give the illustration glass gridiron pendulum heat Hydrometer inch inclined plane instrument iron latent heat lever Leyden jar light liquid magnet matter mercury metallic motion move non-conductors object particles pass piston plate pole portion position pounds pressure produced pump rays reason reflected refracted represented in Fig resistance retina rise screw seen in Fig sensible heat side solid sound space specific gravity steam stone straight string substances supposed surface thermometer tion tricity tube upward valve vapor velocity vessel vibration visual angle weight
Page 151 - ... level. So awful is the spectacle of a storm at sea, that it is generally viewed through a medium which biases the judgment ; and, lofty as waves really are, imagination makes them loftier still.
Page 151 - ... two waves. The spray of the sea, driven along by the violence of the wind, is of course much higher than the summit of the liquid wave ; and a wave coming against an obstacle, may dash to almost any elevation above it.
Page ii - Hooker's Child's Book of Nature. The Child's Book of Nature, for the Use of Families and Schools : intended to aid Mothers and Teachers in Training Children in the Observation of Nature. In Three Parts. Part I. Plants. Part II. Animals. Part III. Air, Water, Heat, Light, &c. By WORTHINGTON HOOKER, MD Engravings.
Page iii - A boy of twenty, with no previous knowledge of such subjects, cannot understand Coke. It is folly to set him upon such an author. There are propositions in Coke so abstract, and distinctions so nice, and doctrines embracing so many distinctions and qualifications, that it requires an effort not only of a mature mind, but of a mind both strong and mature, to understand him. Why disgust and discourage a young man by telling him that he must break into his profession through such a wall as this.
Page iii - He was an admirable man, and a good lawyer himself; but I was put to study in the old way, that is, the hardest books first, and lost much time. I read Coke Littleton through, without understanding a quarter part of it.
Page 151 - No wave rises more than ten feet above the ordinary level, which, with the ten feet that its surface afterwards descends below this, gives twenty feet for the whole height, from the bottom of any water-valley to the summit.
Page 105 - ... is made to prevent it ; the truth being, however, that it can only fill the outer ear, or as far as the membrane of the drum, and is therefore of no consequence. Every diver and swimmer has his ears filled with water, and with impunity.
Page 105 - Not knowing the importance of keeping the chest as full of air as possible, the doing of which has nearly the same effect as tying a bladder of air to the neck ; and, without other efforts, will cause nearly the whole head to remain above the water.
Page 105 - They fear that water entering by the ears may drown, as if it entered by the nose or mouth, and they make a wasteful exertion of strength to prevent it ; the truth being, however, that it can only fill the outer ear, as far as the membrane of the drum, where its presence is of no consequence. Every diver and swimmer has his ears thus filled with water, and cares not.