CHAP. XII.] CAVENDISH PAPERS. 403 



but I think that your success in choruses is fully equal to 

 that in dialogue, considering the greater difficulty, not only 

 in the interpretation, but in guessing the kind of effect, 

 musical, rhythmical, rhetorical, poetical, and pictorial, which 

 was aimed at in the delivery of the chorus. 



We have all been conversing on the telephone. Garnett 

 recognised the voice of a man who called by chance. But 

 the phonograph will preserve to posterity the voices of our 

 best speakers and singers. See Nature of Jan. 3d. 



To W. GARNETT, Esq. 



Glenlair, 20th September 1878. 



. . . Cavendish would speak of the pressure of a voltaic 

 battery (only he hadn't one), but we require to be educated 

 up to his mark. 



To THE LIBRARIAN OF THE EOYAL SOCIETY. 



Glenlair, Datteattie, 23d June 1879. 



DEAR SIR Your information about FF.RS. has been 

 so useful to me that I now ask about Dr. G. Knight, F.E.S., 

 librarian to the British Museum. 



(1.) Is his name Gowan, Gowen, Gowin, or Godwin, for 

 I find all four spellings current ? 



(2.) Who is the author of the paper in Phil. Trans, for 

 1776 (near the end of the vol.) describing his great maga- 

 zines of magnets ? 



(3.) Are the magazines [sketch shown] mounted like 

 great guns still in the possession of the E.S. ? 



(4.) Is the portrait of Gowin Knight, by Benjamin 

 Wilson, F.RS., among the pictures of the K.S. ? 



I have got from the Meteorological Office some Cavendish 

 MSS. on Magnetism which prompt these enquiries and also 

 this 



When the E. S. was at Crane Court had it a garden 

 adjoining ? Also, where was Crane Court ? 



Henry Cavendish and his father Lord Charles worked 

 together at observations of the variation compass and dipping 



