The exposed part of the trough was filled with an indiscriminate mixture of sand and asphaltum.
Asphaltum appears to be a very general product of the Island and of the water along its shores.
Asphaltum would reward study; it was universally used by the Venetians, and seems never to have cracked with them.
Some were receptacles for asphaltum, while others, which are quite empty, were employed probably for domestic purposes.
After assembling the bench give it two more coats of asphaltum paint.
