. The principles of chemistry . English pound equals 453-59 grams. The great advantage ofthis system is that it is a decimal one, and tliat it is univei-sally adoj^ted in science and inmost international relations. All the measures cited in this work are metrical. Theunits most often used in science are :—Of length, the centimetre ; of weight, the gram ;of time, the second ; of temperature, the degree Celsius or Centigrade. According tothe most trustworthy determinations (Kupfer in Russia 1841, and Chaney in England1892),the weight of a c. dcni. of water at 4° in vacuo is about 9999 grms. For
. The principles of chemistry . English pound equals 453-59 grams. The great advantage ofthis system is that it is a decimal one, and tliat it is univei-sally adoj^ted in science and inmost international relations. All the measures cited in this work are metrical. Theunits most often used in science are :—Of length, the centimetre ; of weight, the gram ;of time, the second ; of temperature, the degree Celsius or Centigrade. According tothe most trustworthy determinations (Kupfer in Russia 1841, and Chaney in England1892),the weight of a c. dcni. of water at 4° in vacuo is about 9999 grms. For ordinarypurposes the weight of a c. dcg. may be taken as equal to a kg. Hence the litre (deter-mined by the weight of water it holds) is slightly greater than a cubic decimetre. ON WATER AND ITS QOM forms crystals of the hexagonal system^ w] tKi^S^i LOW, which 1 As solid substances cappear in independent, regnlar, crystalline forms which aredependent, judging from their cleavage or lamination (in virtue of which mica breaks,.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublis, booksubjectchemistry
