STROMBOLI 



257 



Yent 3 is approximately in the position of the Sciarra vent. Vents 4 and 

 5 (the latter said to be donbtful) evidently correspond to the Torreone 

 vent. It will be recalled that this vent was double in April, 1914 (fig- 

 ure 2). 



Bergeaf s plan and sketch of the terrace^^ in October, 1894, are shown 

 in figures 9 and 10. His IV is, of course, the '^Antico^^ or Zolfo vent, 

 and I, equally as obviously, is the Torreone vent. Whether II and III 

 correspond to the Sciarra vent or to the Central vents, or are independent, 

 is uncertain. Bergeat could only observe the terrace from above, not 

 from below the Torreone, and the linear arrangement of these between 

 I and IV may be more apparent than real, and due to the somewhat difii- 

 cult perspective. I am inclined to believe that they are in reality the 



Figure 8. — Sketch of Grater Terrace of Stromlioli, November, 1895 (Ricco) 



Central vents, but the sketch implies that possibly they are only fuma- 

 roles. At his visit there was, apparently, no activity at the Scarp or the 

 Fumarole vents, but the former is shown in the foreground of the sketch 

 (figure 10). 



The plan and sketches given in figure 11-^ show the conditions in July, 

 1891. This appears to be the earliest published plan. Here, judging 

 from the plan, the description in the text, and some photographs (not 

 reproduced here), number 2 would appear to be the Zolfo vent, and num- 

 ber 3 is probably the Sciarra vent. Number 5 is the Torreone vent and 

 number 4 a Central vent. Great confidence, however, is not placed in 

 these identifications, tliough obviously the Zolfo, Torreone, and Scarp 

 vents are present. 



i» A. Bergeat : Op. cit.. table x, and figure 3, p. 31. 

 20 A. Ricco and G. Mercalli : Ann, Uff. Cent. Met. Ital. 

 1892. 



(2), vol. xi, part iv, tav, ii, 



