Page:Handbook of Meteorology.djvu/303

Hail storms, notable, 105
Halo, 121
Heat, adiabatic, 20
— absorption of, 37
— conductors of, 19
— diffusion of, 18
— in deep borings, 17
— insulators of, 19
— latent, 20
— radiant, 16
— sensible, 36
— sources of, 17
— specific, 20
— units of measurement, 21
Heavenly cross, 122
Helium, 7
Hertzian waves, 108
Hoang River, 131
Horse latitudes, 53, 99
Hot winds of the Plains, 55
Howard quoted, 73
Humidity, absolute, 215
— and health, 63
— measurements of, 215
— relative, 62, 215
Humphreys, W. J. quoted, 3, 129
Hurricane, West Indian, 153
Hydrogen, 6
Hygro-autometer, 216
Hygrodeik, 217
Hygrograph, 219
Hygrometer, hair, 218
— Mason’s, 216
Hygroscopes, 215
— chemical, 256
International Meteorological Congress, 75
Isle Dernier, 153
Isobars, 47
Isothermal layer, 27
Isothermal lines, 24
Isotherms, January (map), 30
— July (map), 32
Jameson, P. R. quoted, 46, 63
Khamsin, 55
Kimball, H. H., quoted, 130
Krakatoa, eruption of, 22, 128
Krypton, 6
Land-and-sea breeze, 55
Latitude and temperature, 29
Lid, atmospheric, 57, 137
Light, absorption of, 120
— diffraction of, 120
— reflection of, 120
— refraction of, 120, 143
Lightning, forms of, 115
— Reeder quoted, 115
— safeguards against, 119
McAdie quoted, 232
Mackerel sky, 77
Magnetism, 13
Malleability, 12
Matter, 10
— forms of, 11
— properties of, 11
Millibar defined, 39
Mistral, 55
Mirage, 123
— and visibility, 143
Mock moon, 121
— sun, 121
Mohave desert, 109
Mohn quoted, 46
Monsoons, 52
Mountain valley winds, 54
Mount Washington, 48
Neon, 6
Nipher shield, 229
Nitric acid, 7
Nitrogen of atmosphere, 3, 4
Northers, San Joaquin, 55
— Texas, 55
Optical phenomena, atmospheric, 120
Oxygen, 4
Ozone, 7, 8
Pampero, 55
Paraselenae, 121
Parhelia, 121