JOURNAL 



OF THE 



EOYAL MICEOSCOPICAL SOCIETY. 



JUNE, 1919. 



TEANSACTIONS OF THE SOCIETY. 



I 



III. — The Identification of Intracellular Structures. 



By J. Bronte Gatenby, Senior Demy, Magdalen College, Oxford, 

 Lecturer in Cytology, University College, London. 



With Fourteen Text-Fiqures. 



Introductory, 



The object of these notes is to put before zoologists, and to some 

 extent botanists too, certain results in practical histo-chemistry, 

 from the cytologists' point of view. I shall make no attempt to 

 add anything to physiological chemistry, but rather to classify the 

 organs of the cell under their proper heads. Such modern and 

 valuable works as the "Monographs on Biochemistry," by Plimmer, 

 Leathes, Maclean and others, are written from a different point of 

 view from that generally taken by zoologists, and in the present 

 paper I have tried to unite some of the results of biochemistry 

 with those of cytology. 



The physiological or bio-chemist writes of his reagents as they 

 affect any given organic substance ; the working cytologist regards 

 his fixing reagents, not altogether as they themselves affect the cell 

 or any of its bodies, but as to the state in which cells appear after 

 the fixed material has been treated in up-graded alcohols and a 

 clearing oil. Most biochemists, on the other hand, working on 

 materials extracted in bulk, often after desiccation or by destruc- 

 tive extraction by liquids, lose sight of the view of the worker who 

 deals with individual cell organs.-? 



-~==^ ' H 



