4. He travelled
abroad for the first time in 1872 to Kopenhagen to visit Steenstrup a family friend.
In June 1873 he went aboard Hansteen to plumb the depth of the reefs on the West
Coast of Norway.
5. In the spring of 1879 he was in Finnmark again
during the capelin fishing. It was an opinion at the time that whale hunting
was damaging the capelin industry. Sars’ findings disputed this, but to
protect the whales from extinction he suggested a
reduction in whaling activity.
6. In 1890 publications of
his monumental work came out under the title “ An
account of the Crustacea of Norway” It was written of
this work by dr Thomas Scott from Aberdeen; “ The amount
of work he has done is wonderful, and it is so
well done, that it will be of use for all time.” On his
eightieth birthday he was heralded by an old
colleague dr T. Odhner as the premier researcher of
crustaceans; “princeps carcinologorum”.