94 
Notes on Portrait-plates 
Edward (1846-1910), who became Professor of Zoology at Liege in 1870 and 
likewise published contributions to parasitology. 
For Biography see Obituary Notice in Proc. Roy. Soc. London, 1895, 
lvii, p. xx. A portrait appeared in Arch, de Biol. Gaud , v. 16. A full Biblio¬ 
graphy will be found in Stiles and Hassall (1902) Index Catal. of Med. and 
Veter. Zool. pp. 85-92; the papers relate to Cestoda, Trematoda, Nematoda, 
Hirudinea, parasitic Acari and Crustacea, Linguatula, etc. Our portrait is 
reproduced from a photograph obtained through the courtesy of Prof. J. Bordet 
of Brussels in 1920. 
Rudolph Leuckart 
1822-1898. 
(Portrait-plate XIII.) 
Karl Georg Friedrich Rudolph Leuckart was born 7 October, 1822, at 
Helmstedt, Brunswick, and died 6 February, 1898, at Leipzig. In 1847 he 
became Privat Docent at Gottingen, in 1850-69 he was Professor of Zoology 
at Giessen and in 1870-98 he held the like chair at Leipzig. He distinguished 
himself especially as a helminthologist, being attracted to the subject through 
the work on parasitic worms carried out by his uncle, Prof. F. S. Leuckart 
(1794-1843). I 
His first helminthological work, on Cestodes, appeared in 1848. He wrote 
on Linguatulidae (Pentastoma, 1857-60), Pupipara, the nematoid worms 
Attractonema and Sphaerularia, on Trichina spiralis (discovered by Sir James 
Paget when a student and named by Richard Owen), Echinorhynchus, Strongy- 
loides, and created the class “SporozoaA among Protozoa. One of his last 
discoveries was that Lymnaeus periger serves as intermediary host to Distomum 
hepaticum, a discovery anticipated by a few weeks by Thomas of Oxford, who 
later became Professor at Christchurch, New Zealand. Much of Leuckart's 
original work is contained in his Menschliche Parasiten, etc., which went through 
two editions (1863 and 1876-1901) and was translated into English. Reference 
to the bibliographies below cited shows the wide range of his activities. His 
laboratory was a centre of keen research and many well-known parasitologists 
were his pupils. 
For Biography see E. Ray Lankester (1901) in Obituary notices of Fellows 
of the Royal Society, Roy. Soc. Year-hook , reprinted 1904, Pt I, pp. 19-22; 
R. Blanchard (1898), Arch, de Parasitologie, i, 185-190, with portrait and 
facsimile letter; V. L. Kellogg (1898), Psyche , Cambridge, Mass, vrn, 214-215; 
F. A. Zuern (1898), Zeitschr. f. Thiermed. Leipzig, n, 235-237. I have drawn 
from the first two sources. 
For complete Bibliography see Leuckart’s Festschrift (issued on the 50th 
anniversar}^ of his professorial career); Stiles and Hassall (1906), Index Catal. 
of Med. and Veter. Zool. pp. 1078-1088. Our portrait is reproduced from one 
that appeared in the Munchen. med. Wochenschr. 
