THE CROWNING YEARS 309 



lary flood rose higher than ever on his return. The 

 struggle had spread to England and France. He 

 had returned to a cauldron of controversy. He 

 quietly resumed his teaching at the university and 

 attacked his still formidable literary programme. 

 Day after day the aged scholar — he was now in 

 his sixty-seventh year — briskly stepped up to the 

 podium at the Zoological Institute and delivered his 

 lectures, drawing his objects with a few quick 

 strokes on the board or exhibiting the plates pre- 

 pared by Giltsch. He noted with a quiet gleam of 

 satisfaction that a few ladies now ventured into 

 the ^'Materialist" circle. The new century had 

 begun. 



In 1902 he issued the cheap edition of the 

 Riddle^ of which 180,000 copies have been sold in 

 Germany, with a reply to its critics. " The great 

 struggle for truth," he wrote to his friend. Dr. 

 Breitenbach, '^ grows fiercer and fiercer, the more 

 my w^ork is attacked by the clergy, the metaphysical 

 schoolmen, and the erudite Philistines. I am 

 continually receiving lively and sometimes enthusi- 

 astic letters of congratulation from all parts of the 

 world." In the meantime he was engaged upon 

 two important works, which he published in 1903. 



The earlier edition of the Anthropogeny, of which 

 Professor Bolsche has written, was undergoing a 

 thorough revision. New evidence was pouring in 

 every year in support of his sketch of the genealogy 

 of humanity. Dubois had discovered what is now 

 admitted to be an organism midway between the 

 highest ape and the earliest prehistoric man. 



