Res Judicatae in 1892 and various other volumes followed, for he was in request among publishers and editors, and his easy charm of style and acute grasp of interesting detail gave him a front place among contemporary men of letters.
He collected curiosities and works of art; he assembled Greek men of letters round him; he gave prizes to the greatest poets and the best eaters.
Many Copenhagen Jews achieved distinction as manufacturers, merchants and bankers, and among famous Jewish men of letters may be specially named Georg Brandes.
He was already on terms of intimacy with the leading men of letters in Scotland and England.
Gosse's Jeremy Taylor (1904) in the English Men of Letters series.