FIGURE 17 
Four one storied houses buried up to 
their vaulted roofs in lava at the Rione 
Oratorio, Boscotrecase. To the man’s left 
seated on the roof is a chimney, and another 
cylindrical one broken off lies at the 
corner of the houses nearest the observer. 
TRANS. R. Dust. Soc. Sgr. II. Vor. IX. 
FIGURE 16 
Lava that invaded the court of the 
villa of M. and T. Borosio at Boscotrecase. 
FIGURE 18 
A volcanic dumpling or flotation bomb. 
The nucleus is of masonry. The thin 
compact crust of lava has been partly 
broken away to show the nucleus, The 
crust is, however, intact at the lower 
front part to the left of the figure and at 
the top. 
PLATE XII. 
