Long description

The photo shows the instrument sitting on the wooden deck of a ship. The deck is wet, so it's probably just been winched out of the water. The instrument is within a cylindrical frame about 2.5 metres high and 1.5 metres in diameter. The collection bottles are dark grey, about a metre long and thin, and lie within the top third of the instrument. There are about 20-25 of them arranged vertically in a concentric pattern.