HISTOLOGICAL ISOTES. 191 



Histological Notes. 



By 



Heneage Giblbes, 9I.I>., 



Lecturer on Physiology and on Normal and Morbid Histology, in the Medical 

 School of the Westminster Hospital. 



I. — Ciliated Epithelium in the Kidney. 



In 1880 Dr. Klein fouud ciliated epithelium in the kidney 

 of a mouse. He has published an account of this in the April 

 number of this Journal for 1881. 



He describes the cilia as occurring in the convoluted tubes 

 near the Malpighian corpuscles. 



At Dr. Klein's suggestion I carried out this inquiry in the 

 kidneys of different animals. I found them in the kidney of 

 the white rat, brown rat, guinea-pig, and dog. 



It is necessary to harden the kidney in alcohol to bring out 

 the cilia clearl} ; if chromic acid or Miiller's fluid is used, they 

 cannot be made out so well. 



To show them well the sections must be very thin; they 

 may be cut with the Williams' freezing microtone, and care 

 must be taken in transferring them from the different re- 

 agents. 



The cilia appear to be in that portion of the convoluted tube 

 near the Malpighian corpuscles, but 1 have also found them in 

 transverse sections of tubes which may have been further 

 awaj. 



They are short and very fine, set densely on the free edge 

 of the cell. 



A magnifying power of 500 diameters shows them very well. 



Mr. J. W. Groves, of King's College, has also observed 

 cilia in the kidney of the dog. 



