Lapland, strange stories its butterflies tell, [48]
Laurentian Highlands, how they rose out of the sea, [9]
Lava, how it makes dikes and what a New York City dike has to say about the origin of marble, [97], [241];
how lava plays "grandfather" in the Porphyry family, [102];
lava and the flame effects on volcanic clouds, [126];
lava plains, [126];
how lava helps raise the fine fruit and wheat of Washington and Oregon, [128];
how it increases the violence of delayed volcanic explosions, [130];
the lava and the "fire from heaven" in the story of Lot, [209];
the iron wall near Spanish Peaks, [235];
remarkable architecture of the Giant's Causeway, [243];
theory as to what makes the lava climb, [244]
Libyan desert, Greek myth as to its origin, [2]
Limestone, how it turns to marble, [97], [104];
how the shelled creatures of the sea help make it, [101];
the "Marble Rocks" at Jabalpur, [105];
the place of limestone in the rock-making system of the sea, [227];
limestone and the story marble tells of mountain making, [237], [239]
Little Round Top (Mt.), the battles that rounded it, [248]
Lizards, varieties in the Arizona desert, [181]
London, how it owes its greatness to the transgressions of the sea, [224]
Los Angeles River, how one of its tributaries plays hide-and-seek, [80]
Lowell, Mass., how the Old Men of the Mountain helped build it, [34]