Found this one at:
http://www.hmschallenger.org/
The H.M.S Challenger expedition was the first round the world oceanographic voyage in 1872-1875. Among the places visited by the ship was my City spelled as
Samboangan in the book.
Scanned images and pages of the original narrative volumes included this picture of Lutao spear dance. The spears' profile appear to be sangkil-sulayang and not budiaks.
Entire scanned pages of the article on the ship's Zamboanga leg are highlighted in zamboanga's main site :
www.zamboanga.com