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