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III! On the steady Flow of a Liquid. By the late Henry 

 MosELEY, M,A,, D.C.L., Canon of Bristol, F.R.S., Corre- 

 sponding Member of the Institute of France, 6fc. Edited by 

 Walter R. Browne, M.A., Fellow of Trinity College, Cam- 

 bridge, 



[Continued from vol. xlii. p. 362.J 



[With a Plate.] 

 Prefatory Note. 



THE following paper completes the series on the steady- 

 Flow of Liquids published in the Philosophical Magazine 

 by the late Canon Moseley. He did not live to revise it for 

 publication ; that task was, by his request, entrusted to me. 

 The paper, however, was practically complete; and all that I 

 have found necessary, beyond numbering the equations and su- 

 perintending the publication, has been to make a very few ne- 

 cessary additions and corrections, the more important of which 

 are noticed where they occur. 



The circumstances, however, under which the paper was 

 finished seem to me to demand, and will, I think, excuse some- 

 thing beyond this brief explanation. It was the work on which 

 Canon Moseley was engaged when seized with his last illness ; 

 and during that illness it still occupied his thoughts. Some 

 time after all hope of recovery had ceased, and when death had 

 already come very near, there was a short rally of strength ; and 

 he then dictated to his daughter the last three paragraphs. No 

 one can read these without being struck by their composure, 

 their courtesy, and perfect clearness of thought; and no one 

 would, I believe, suspect under what circumstances they were 

 written down. Nevertheless that the mind, even in full view of 

 death, should still move freely along the paths to which it is 

 accustomed may be, although a striking, not a very rare pheno- 

 menon. But that which as men of science we may well note is 

 this : — that whereas it is often asserted and oftener assumed that 

 a deep study of the laws of nature forbids the mind to acknow- 

 ledge any thing beyond those laws, we here see one who in the 

 very last hours of life could still pursue that difficult branch of 

 earthly knowledge in which his high distinction had been won, 

 and who could also turn directly from such pursuit to receive 

 the ministrations of that religion and that church in which he 

 had lived, and in which he was well content to die. 



General Conditions of the Uniform Flow of a Liquid in a closed 

 Channel of any given geometrical form which it enters from 

 a reservoir. 



By the uniform flow of a liquid is meant here (as before in 



