Proceedings of the Linnean Society of London - University Library

LINNEAIf SOCIETT OF LONDON. 37
same favourite subject of the Copepoda. Just before his deatli
he had completed, in partnership with Mr. Andrew Scott, A.L.tS.,
an important Report upon the Copepoda of the Ceylon Pearl
Banks, for Herdman's great work on the Pearl Oyster Fisheries
of that island, now in course of publication by the Koyal Society.
The impression produced by I. C. Thompson on those who met
him only at irregidar intervals fully agrees with the opinion
expressed by his intimate friend. He seemed to be a man of solid
worth, without caprice of temper, uniformly actuated by genuine
kindness. His biographer speaks of the large number of men,
well qualified to judge, who " liad learned to appreciate, not only
his scieutitic Ivnowledge and skill, but also his honest, fearless,
upright character and his bright and sympathetic loving nature."
Michael Wobonin was born at St. Petersburg on July 21st, 1838 ;
he came of a wealthy family, and was thus in a position to devote
himself wholly to scientific research, for which he early showed a
strong inclination, without the necessity of seeking any official post.
At the University of St. Petersburg he was a pupil of Cienkowski's,
whose infiuence no doubt first attracted him to the study of the
lower plants to which his life's work was mainly devoted. When,
after taking his degree, he went to Germany, and entered De Bary's
laboratory at Fi-eiburg, his career as an investigator began . Woronin
was one of the most brilliant of De Bary's disciples, and perhaps
followed more closely than any other in the footsteps of his distinguished
teacher, both in method and spirit. Although his first
botanical publication was on an anatomical subject (the anomalous
stem of Calijmnihus), it was among the Thallophyta that his charac-
teristic work was done. Beginning with an investigation of the Siphoneous
Algae Acdabularia and Esijcra, carried out under Thuret
at Antibes, Woronin, throughout his life, continued to produce a
remarkable series of researches, either alone or in co-operation with
others, on Algae, Fungi, and Mycetozoa. Of his algological investigations,
that on Botnjdium granulatum, published in conjunction
with Eostatinski, is perhaps the best known, though not free from
error. Among his far more numerous works on Fungi, those
on the ChytridiuesB (in co-operation with DeBary), on Ascohohis,
on Exobasidhon, on the Ustilaginese (partly in conjunction with
Ue Bary), on Pucdnia, and on Sderotinia, in which last Nawaschin
was a collaborator, may be mentioned as of fundamental importance.
His researches on Ceratium (in which he was associated
with Famintzin) and on Plasmodiophora are among the most valuable
contributions to the life-history of the Mycetozoa. No one has
done more than AVoronin, if we except De Bary himself, to
advance our knowledge of the groups at which he worked. " Woronin's
hypha " is a term familiar even to students, and recent
researches have tended to emphasize the importance of this organ
in relation to fertilization in Ascomycetes.