Class-book of Science and LiteratureChambers, 1869 - 324 pages |
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Page 4
... substances , as silk and flax , possess great tenacity . The most tenacious of all substances is steel . ( 2 ) ... substance known , and is used in cutting glass . ( 5 ) Brittleness is closely allied to hardness , for most hard ...
... substances , as silk and flax , possess great tenacity . The most tenacious of all substances is steel . ( 2 ) ... substance known , and is used in cutting glass . ( 5 ) Brittleness is closely allied to hardness , for most hard ...
Page 5
... substances having these holes are said to be porous . In ordinary language , it is only such substances as cork and very soft woods , in which these little holes are visible , that are said to have pores ; but , in reality , all substances ...
... substances having these holes are said to be porous . In ordinary language , it is only such substances as cork and very soft woods , in which these little holes are visible , that are said to have pores ; but , in reality , all substances ...
Page 21
... substances . If the head be held under water , any noise at a distance , such as that caused by two stones being knocked against each other , is heard with great distinctness . Or if the ear be placed at one end of a log of wood , the ...
... substances . If the head be held under water , any noise at a distance , such as that caused by two stones being knocked against each other , is heard with great distinctness . Or if the ear be placed at one end of a log of wood , the ...
Page 23
... substance resting on the teeth , be turned slowly , the shock produced by the plate falling off each tooth is conveyed separately to the ear , and separate sounds are heard ; but when it is turned more rapidly , the shocks all blend ...
... substance resting on the teeth , be turned slowly , the shock produced by the plate falling off each tooth is conveyed separately to the ear , and separate sounds are heard ; but when it is turned more rapidly , the shocks all blend ...
Page 25
... substance or fluid called ether . The vibrations of the particles of a luminous body are communicated to the ether ; the pulses transmitted through it enter the eye , and strike upon the retina , and , being thence conveyed to the brain ...
... substance or fluid called ether . The vibrations of the particles of a luminous body are communicated to the ether ; the pulses transmitted through it enter the eye , and strike upon the retina , and , being thence conveyed to the brain ...
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Class-Book of Science and Literature: Illustrated With Wood Engravings ... No preview available - 2017 |
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acrogenous appearance arms arteries attached beautiful become belong birds blood body bones branches called Carnivora carpels cavity cells Cetacea chyle common composed consists contains cotyledons creatures Crustaceans deposited divided earth electricity eyes feet fibres Fishes Florac flowers Floy fluid force fruit glass greater Greek hand head heart heat herbaceous inclined plane insects intestine Ivanhoe kinds larvæ Latin layer leaves lever light limbs limestone liquid live mass matter membrane motion mouth muscles Myriapoda nature nerves organs oviparous palm papillæ particles pass piece pistils plants pressure prey produced Protozoa quadrupeds rays refracted resemblance retina Rhizopoda rocks roots round sandstone seeds seen shells shew side soft sometimes sound species spring stamens stem stomata stone strata substance surface sweet teeth thee thick thou trees vegetable vertebræ Vertebrata vessel vibrations weight whole wings wood