The Popular Educator, Τόμος 4 |
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Αποτελέσματα 1 - 5 από τα 80.
Σελίδα 5
... cold dissolve the evaporated material in distilled water. The liquid now returns
to the state in which it originally was before evaporation, with this difference, any
excess of oil of vitriol over and above the quantity necessary to dissolve the zinc,
...
... cold dissolve the evaporated material in distilled water. The liquid now returns
to the state in which it originally was before evaporation, with this difference, any
excess of oil of vitriol over and above the quantity necessary to dissolve the zinc,
...
Σελίδα 29
The quantity of plants, shrubs, bushes, and timber that grows on most lands, and
especially in tropical forests, in the course of one century, must be enormous. ,
Were these masses of vegetation deposited in a sea, they would pile up into a hill
...
The quantity of plants, shrubs, bushes, and timber that grows on most lands, and
especially in tropical forests, in the course of one century, must be enormous. ,
Were these masses of vegetation deposited in a sea, they would pile up into a hill
...
Σελίδα 30
In every such instance, the quantity of sand and soil washed down into the
nearest river has increased enormously. The reason is, that as soon as the
bushes and the trees are removed, the rain-water rushes with unbroken force
upon the ...
In every such instance, the quantity of sand and soil washed down into the
nearest river has increased enormously. The reason is, that as soon as the
bushes and the trees are removed, the rain-water rushes with unbroken force
upon the ...
Σελίδα 31
These three families of plants form about three-fourths of the vegetaThe
remainder consists of cone-bearing trees, and of vast quantities of a kind,
apparently, like the cactus. Of the entire number of species discovered in the
carboniferous ...
These three families of plants form about three-fourths of the vegetaThe
remainder consists of cone-bearing trees, and of vast quantities of a kind,
apparently, like the cactus. Of the entire number of species discovered in the
carboniferous ...
Σελίδα 32
The fern tribe still continued to diminish, but the cone-bearing wood increased in
quantity. With the palms and other tropical trees, there grew willows; elms,
poplars, chesnuts, and other similar trees, which increased in number and variety
, ...
The fern tribe still continued to diminish, but the cone-bearing wood increased in
quantity. With the palms and other tropical trees, there grew willows; elms,
poplars, chesnuts, and other similar trees, which increased in number and variety
, ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
adjectives adverb ammonia antimony apparatus arsenic atmosphere barometer body bottle boulders called Cash Account CASSELL’s compound contains Cotton Account dative denotes direction employed English equal equation example Florence flask force French given glass grave accent gravity greater Greek hence hydrogen inches Italian Italian language itſ language Latin latter lesson liquid London and Westminster manganese marked means mercury metal motion nitric acid noun object orifice oxygen participle particles Perfect Tense piston Pluperfect Tense plural precipitate preposition present pressure pronounced pronunciation quantity remark result right angles rocks scale sentence side ſº solution sound straight line student sulphur sulphuret sulphuric acid surface syllable Tense thou tion tº º º tº tº triangle tube University of Pavia velocity verb vessel volume vowel weight Westminster Bank words zinc