The SS Waratah sank off the South African Coast in 1909.
I think I found your book
LOST AT SEA
The truth behind eight of history's most mysteriou ship disasters.
A.A.Hoeling.
Originally published by Stackpole Books, Pennsylvania, 1984.
Rutedge Hill Press, Nashville, Tennessee, USA, 1999. (Image) [ps]
Softcover, mono images, 223 pages, no index.
Covers: Mary Celeste, S.S.Waratah, RMS Lusitania, HMS Hampshire, Cyclops, liner Morro Castle, SSN Scopion, SS Poet.
The picture is a sketch of the Lusitania going down, I read the book may years ago.
Hope this helps