42 PEOCEEDINQS OF THE 



tini. gruuiul ; ti.e phenomena of indirect cell-division was shown 

 and exphuned, and karyokinesis set forth as occurring both in 

 phmts and inlusuria, 



JiUtschli prosecuted Ids researches during the following years 

 witl, the greatest energy, until in IbSO he undertook a thorough 

 working out in Bronn's ' Klassen und Ordnungen des Tierreichs ' 

 .Nnie strenuous years were given to these bulky three volumes, 

 the subject benig critically handled. The considerable pro'-ress 

 ot protozoa research during the last thirty years is inconceivable 

 without Jiiitschli's labours. 



From this he turned to Bacteria and Cyanophyce* and the 

 question ot the constitution of Protoplasm connected with the 

 phenomena ot hie. In his ' Untersuchungen uber mikroscopische 

 fc^chaume und das Protoplasma,' 1892, he set up his foam theory, 

 with Its associated ideas, lie continued his investigation during 

 succeeding years, and also in chemistry and crystallography, 

 whilst still labouring as Professor of Zoology. He did not live to 

 complete his 'Comparative Anatomy' though' the bulk was written. 

 He died on the l^nd February, Um : his Foreign Membership 

 of the Linnean Society dated from 7th May, 1908. 



The writer is indebted to the notice of Blitschli, with a portrait, 

 priiated in the olst Bericht der Senckenbergischen Xaturforsch- 

 enden Gesellschaft, in 1920. [B, j) j n 



Fbaxcis Maule Campbell (1843-1920).— From additional 

 information received since the notice of our late Fellow was 

 printed in the 'Proceedings,' 1920-21, p. 45, the following 

 amended statement is issued : — 



In 19U2, 31r. Campbell married the widow of 31r. Edward 

 ieeles, of Bath, who died in 1919; his second marriage took 

 place at St. Mary Abbot's, Kensington, on the 20th October, 

 1920, to Mrs. Hunkerley, widow of the late Prof. Dunkerlev, of 

 Manchester University, her maiden name being Jebb. 



The illuetrious French zoologist, Yves Delage, Professor of 

 -^oolo.gy at the Sorbonne and Membre des Academies des Sciences 

 et ce Medecine, died on October Sth, 1921, at 66 years of a^e 

 Coming to Pans as a young medical student, Delage was soon 

 attracted to the study of zoology by his famous predecessor, 

 I^acaze-Huthiers. Most of his researches were carried out at 

 the marine laboratory of Koscoff, of which he later became 

 Hn-ector. A most versatile and industrious worker, his researches 

 cover a wide field. Among his earlv works mav be mentioned an 

 important memoir on the vascular system of Crustacea and another 

 on the nervous system of the Planaria acffila. But it is for his 

 work on the life-history of the remarkable parasitic Crustacean 

 ^accuhmi and on the Embryology of Sponges that he is best 

 known. Delage first described the strange inversion of the germ- 

 layers and the origin of the collar cells in the higher sponges. In 

 later yeare he studied with his usual enthusiasm and orfginality 



