SCIENTIFIC NEWS. 541 
fat of dermal glands; van Wijhe, the contribution of the ectoderm to 
the pronephric duct; Rabl, the non-contribution of the ectoderm to 
the pronephric duct; Bethe, primitive fibrilla in the ganglion cells 
and nerve fibres of waeit and invertebrates; H. Virchow, sur- 
face views of selachian embryos and the region of mesoderm forma- 
tion ; Kopsch, experimental researches on the primitive streak of the 
chick — similar developmental forms in vertebrates and invertebrates; 
Reinke, direct cell division and degeneration of the nucleus in liver 
cells; Meves, spermatogenesis in mammals; Osarva, position of 
Hatteria in the system; Lenhossek, new centrosomal discoveries ; 
van der Stricht, nucleus of Balbiani; Rabl, anatomy and structure of 
the lens; Mollier, mechanics of the shoulder girdle; Kolster, Mauth- 
ner’s fibres in teleosts; Kölliker, dilator pupillæ in white rabbits — 
primitive fat organ in young mammals — striped muscle in the liga- 
mentum-uteri steres — structure of the ovary in the horse ; Gaupp, 
primordial cranium in Lacerta agilis; Braus, extremities of selachians; 
Ravn, allantoic stalk of the chick; Klaatsch, tentacle apparatus ‘of 
Amphioxus; Graf Spee, model of the youngest-known human embryo; 
Mitrophanow, gastrulation in amniotes; Broman, development of the 
ossicula auditus in man; Martens, development of the larynx in the 
anura ; Kallius, development of the larynx in man; Maurer, deriva- 
tives of the gill slits in lizards; Grönroos, primary germ layers in 
Salamandra; Benda, genesis of the spiral filament in the mammalian 
spermatozoon. The only American to join the society this year was 
Dr. R. G. Harrison, of Baltimore. The meeting next year will be 
held in Tiibingen, at Whitsuntide. 
Recent appointments: Rudolf Beyer, honorary professor of botany 
in Berlin. — Dr. Arthur Borntrager, director of the agricultural station 
in Palermo. — Dr. Emil Bose, of Karlsruhe, government geologist of 
Mexico, — Dr. Friedrich Moritz Brauer, director of the zodlogical 
collections in the Vienna Hof Museum. — Dr. Alessandro Coggi, of 
Bologna, professor of zodlogy, comparative anatomy, and physiology 
in the University of Perugia. — Dr. Giovanni Battista Condorelli, 
professor of natural science in the technical school at Gaeta, Italy. — 
Dr. Hanson Kelly Corning, extraordinary professor of anatomy in the 
University of Bern. — Pierre Fauvel, professor of zodlogy in the 
University of Angers, France. — Dr. Adriano Fiori, privat docent in 
botany in the University of Padua. — Dr. Bela Haller, professor 
extraordinarius of zodlogy in the University of Heidelberg. — Dr. 
Franz Hoffmann, privat docent for physiology in the University of 
