Mr Geddcs on the Morphology of the Cell. 357 



XIX. On the Morphology of the Cell. By Patkick Geddes, 

 Esq., r.E.S.K, Lecturer on Zoology in the School of 

 Medicine, and Demonstrator of Botany in the Uni- 

 versity of Edinburgh. 



(Read 16th March 1881.) 



Ah sir act. 



In this paper (which will be published in full in the 

 Society's Proceedings immediately after the reading of the 

 concluding portion early in the Session 1881-82) it is at- 

 tempted to review the present position of the cell-theory, 

 and to summarise and discuss the leading recent contributions 

 to our knowledge of the subject, with special reference to the 

 author's researches — (a) on the relation of the ciliated to the 

 amoeboid state ; * (h) on the plasmodia formed by the clotting 

 of invertebrate corpusculate fluids ; -t* (c.) on the free cell- 

 formation of the coloured blood corpuscles in Echinus ; \ (d.) 

 on interlaminar gemmation in Enteromorp)ha ; § (e) on the 

 mode of formation of the vegetable cell- wall ; || (/.) on a new 

 sub-class of Infusoria,1f etc. 



* "Observations sur le Fluide Perivisceral des Oursins" (Archives de 

 Zool. Exp., 1880). 



t " On the Coalescence of Amoeboid Cells into Plasmodia," etc. (Proc. Roy. 

 Soc, Lond., 1880). 



X "Observations sur le Fluide Perivisceral des Oursins" (Archives de 

 Zool. Exp., 1880). 



§ *' On the Phenomena of Variegation and Cell-Multiplication in a Species 

 of Unteromorpha" (Trans. Roy. Soc, Edin., 1881). 



II "Notes on Chlamydomyxa labyrinthuloides " (Quart. Journ. Micro. Sci., 

 1882). 



II *'Sur une nouvelle sous-classe d'infusoires " (Comptes Rendns, 1881). 



