side of the world; it was not till he returned, after the
four years of his voyage, that he found they had been published by
the Royal Society, and had established his reputation as a first-rate
investigator. But, though with much difficulty the scientific
authorities enabled him to secure the promised Government grant for
his book, and a temporary billet ashore while he worked at it, he was
only able to publish his _Oceanic Hydrozoa_; a vast quantity of his
researches remained unpublished, and subsequent investigators, going
over the same ground, won the credit for them.

The other scientific interest strongly aroused on the voyage was
anthropology. The cruise of the _Rattlesnake_ provided one of the last
opportunities of visiting tribes who had never before seen a white
man. The young surgeon made a point of getting into touch with these
primitive people at Cape York, and in the islands off New Guinea.
He made a preliminary exploration through the uncharted bush of
Queensland with the ill-fated Kennedy, and all but accompanied him on
his disastrous journey to Cape York, when of all the party only two
were rescued, through the devotion of the faithful native guide. He
exchanged names, and therefore affinities, with a friendly native of
the Louisiades, and learned much at first hand as to their physical
and mental characteristics, which stimulated his subsequent
anthropological work.

The Australian voyage, then, provided a magnificent field for original
research and original thought: the unknown naval surgeon returned from
it to find himself recognized as one of the coming men. Contact
with the larger world had broadened his outlook; the touch of naval
discipline concentrated his powers. But Australia gave him another
gift. He met at Sydney his future wife. The young couple fell in love
almost at first sight, and became engaged. They were of the same age,
22; they hoped to get married when he was promoted to the rank of full
surgeon; they were destined to wait seven-and-a-half years before she
returned home to fulfil his early jesting prophecy of making her a
Frau Professorin. Here, again, was stern disciplining on the part
of destiny. For the first years they were able to meet during the
intervals between the long surveying cruises of the ship; they cheated
the months of separation by keeping journals for each other. But for
nearly five years they were parted by twelve thousand miles of sea,
and, worse, by slow sail