Lampland, [197], [225], [275].

Lick Observatory, [100].

Life, necessity of air and water to, [17], [166], [167], [341];

thin cold air no bar to, [18];

maximum temperature determinative of, [19], [378], [380].

Life on Earth, [349-353];

dependent on conditions, [349-355], [357], [379], [380].

Life on Mars, [169], [376];

vegetal, [348], [359];

probably of high order, [348], [359], [377], [378], [381], [382];