112. Diagrams to illustrate the eruptions within the crater of Stromboli 117 113. Map of Volcano in the Æolian Islands 118 114. “Bread-crust” lava projectile from the eruption of Volcano in 1888 119 115. “Cauliflower cloud” of steam and ash rising above the cinder cone of Volcano 120 116. Eruption of Taal volcano in 1911 seen from a distance of six miles 120 117. The thick mud veneer upon the island of Taal (after a photograph by Deniston) 121 118. A pear-shaped lava projectile 121 119. Artificial production of a cinder cone 122 120. Diagram to show the contrast between a lava dome and a cinder cone 123 121. Mayon volcano on the island of Luzon, Philippine Islands 123 122. A series of breached cinder cones due to migration of the eruption along a fissure 124 123. The mouth upon the inner cone of Mount Vesuvius from which flowed the lava of 1872 124 124. A row of parasitic cones raised above a fissure opened on the flanks of Etna in 1892 125 125. View of Etna, showing the parasitic cones upon its flanks 125 126. Sketch map of Etna to show the areas covered by lava and tuff respectively 126 127. Panum crater showing the caldera 126 128. View of Mount Vesuvius before the eruption of 1906 127 129. Sketches of the summit of the Vesuvian cone to bring out the changes in its outline 128 130. Night view of Vesuvius from Naples before the outbreak of 1906, showing a small lava stream descending the central cone 129 131. Scoriaceous lava encroaching upon the tracks of the Vesuvian railway 130 132. Map of Vesuvius, showing the position of the lava mouths opened upon its flanks during the eruption of 1906 131 133. The ash curtain over Vesuvius lifting and disclosing the outlines of the mountain 132 134. The central cone of Vesuvius as it appeared after the eruption of 1906 132 135. A sunken road upon Vesuvius filled with indrifted ash 133 136. View of Vesuvius from the southwest during the waning stages of the eruption 133 137. The main lava stream advancing upon Boscotrecase 133