Geological section, [46], [47].
Geology, defined, [1].
Geyserite, [194].
Geysers, [191-194];
effect of plugging with sod, [193];
in relation to drainage lines, [191];
soaping of, [194].
Geysir, [192].
Gilbert, G. K., cited, [93], [148], [157], [178], [179], [198], [221], [224], [240], [244], [294], [344], [345], [347], [350], [355], [356], [357], [358], [359], [362], [366], [370], [381], [434], [446], [447].
Gjás, volcano fissures in Iceland, [99].