39. 〃 When Hot Water is cooled, it Contracts to begin with,
but after a time Expands 57
40. 〃 Water cooled still further becomes the transparent
brittle solid Ice 58
41. 〃 Ice has less Specific Gravity than the Water from
which it was formed 59
42. 〃 Hoar Frost is the Gaseous Water which exists in the
Atmosphere, condensed and converted into Ice
Crystals 60
43. 〃 When Ice is warmed it begins to change back into Water
as soon as the Temperature reaches 32° 61
44. 〃 Ice the solid, Water the liquid, and Steam the gas,
are three states of one natural object; the
Condition of each State being a certain Amount of
Heat 62
45. 〃 The Phenomena of Heat are the Effects of a rapid
Motion of the Particles of Matter 63