56 
The Expedition received very important assistance from the Indian 
Government, especially through the small steamer “Amboina” being 
placed at our disposal for the dredging operations, the Expedition 
having to pay only the expenses for coal and oil. As there was 
no steam winch on the ship, a winch to be fitted to an oil motor 
was constructed at the navy wharf in Batavia and sent to Ambon 
to be installed onboård the ship there. Especially Mr. Bise hop 
van Tu in en of the navy department made us exceedingly obliged 
to him for his truly undring efforts to arrange all this for the Expe¬ 
dition in the very best way. Also the director of ’s Lands Planten- 
tuin, Buitenzorg, Dr. Docters van Leeuwen, the director of the 
Zoological Museum in Buitenzorg, Dr. K. W. Dam mer man, and 
the director of the Laboratorium voor het onderzoek der Zee in 
Batavia, Dr. A. L. J. S unier, met us with the greatest kindness 
and assisted the Expedition in every way. The sincerest thanks of 
the Expedition are offered here to the Indian Government and 
to the gentlemen named for all their kind help, which was of 
material importance to the success of the Expedition. Last, not 
least, I beg to express the great indebtedness of the Expedition to 
our Dutch colleagues, above all Professor Max Weber, for the 
interest they have taken in the plan of the Expedition and the 
assistance rendered through introductions and in various other ways. 
The expenses of the Expedition were paid by the Danish Rask- 
Oersted Fund; sincerest thanks are herewith offered the direction 
of this Fund for its liberal support. 
The investigations were carried out in the different localities as 
follows: At Amboina (and Saparoea) from February 8th to March 
14th; at the Kei Islands from March 17th to May 23rd; at Banda 
from May 31st to June 21st; at Macasser from June 27th to 29th, 
and in the Java Sea and the Sunda Strait from July 13th to August 
8 th and again, after a visit to Tjibodas and Buitenzorg for the 
sake of making studies and collections of the terrestrial fauna, in 
the first week of September. 
In this report is dealt only with the marine investigations as 
carried out by the author. 
Dr. H j a 1 m a r J e n s e n, who was the botanist of the Expedition, 
returned, together with Mr. Siebers, direetly from the Kei Islands, 
while Dr. Boschma remained and took part in the investigations 
