CHAPTER IX.

From the Falls to the Lake--River above the Falls--Alum Creek--Boiling Springs--Crater Hill--A Narrow Escape--The Locomotive Jet--Sulphur Springs--Mud Puffs--No Vegetation--Temperature of Springs--Muddy Geyser--Mud Volcano--Mud-sulphur Springs--The Grotto--The Giant's Caldron--Movements of Muddy Geyser 90