First published in 1871 this is a facsimile of an important piece of diving literature taken from notes of John William Heinke. It contains a history of diving up to the then modern time of 1871 and included many developments and underwater salvage operations that had been undertaken.
First published in 1871 this is a facsimile of an important piece of diving literature taken from notes of John William Heinke. It contains a history of diving up to the then modern time of 1871 and included many developments and underwater salvage operations that had been undertaken.