Kentucky, the sink holes in the cave regions, [200]
Kepler and the discovery that there are worlds of worlds, [4]
Kettle lakes, how the glaciers of the Ice Age made them, [196]
Labrador, one of the central stations of the Ice Age, [28];
how the butterflies of Labrador tell that their ancestors missed the train, [49]
Lakes, the Ice Age lake and the "Temple of the Winds," [33];
how the Ice Age glaciers made the Great Lakes, [34];
how they helped Lake Erie in making Niagara Falls, [36];
the sleep of lakes and how it brightens them up, [80];
how Mirror Lake shows Mount Rainier how beautiful he is, [130];
how, with Jack Frost's help, lakes build boulder walls, [134];
the empty lake beds of the desert, [162];
"trade-marks" on lake-shore sand, [173];
how lakes are born, [192];
moods of lakes, [198];
why the ducks overlook some lakes, [198];
where mountain lakes get their coloring, [199];
sympathetic action of sister lakes, [200];
how some lakes act as barometers, [201];
tides in lakes, [201];
why lake storms are particularly dangerous, [202];
peculiarity of storms on the Sea of Galilee, [202];
and of storms on mountain lakes, [203];
how lakes grow old and pass away, [204];
why lilies come to dying lakes, [204];
the procession of the trees to the margins of dying lakes, [204];
why they have a regular marching order, [204];
the Dead Sea and how it died, [205];
what science says of the legend of Sodom and Gomorrah, [209];
"Lot's Wife" as she looks to-day, [210];
records of ancient weather on the walls of Great Salt Lake, [249];
how the Great Lakes were tipped up and how they tell about it, [253]
Lake Agassiz, a great lake of yesterday which could swallow all the Great Lakes of to-day, [193]
Lake Baikal, its great depth, [193]
Lake Erie, how the glaciers helped it make Niagara Falls, [36]
Lake Superior (size), [193]
Laplace, his great theory of the origin of worlds, [4]