They arrived in Broome just in time to document the pearling industry 's empirically derived decompression procedures developed over the precious century during the boom period of pearl shell collection .
The DPI contracted LeMessurier and Hills to find out what the pearl divers were actually doing .
DPI arrived in Broome just in time to document the pearling industry 's empirically derived decompression procedures developed over the precious century during the boom period of pearl shell collection .
The DPI contracted LeMessurier and Hills to find out what the pearl divers were actually doing .