﻿PROCEEDINGS 
  OP 
  

   THE 
  EOYAL 
  SOCIETY. 
  

  

  VOL. 
  XXIII. 
  

  

  No. 
  159. 
  

  

  CONTENTS. 
  

  

  February 
  4, 
  1875. 
  

  

  PAGE 
  

  

  I. 
  Remarks 
  on 
  Professor 
  Wyville 
  Thomson's 
  Preliminary 
  Notes 
  on 
  the 
  

   Nature 
  of 
  the 
  Sea-bottom 
  procured 
  by 
  the 
  Soundings 
  of 
  H.M.S. 
  ' 
  Chal- 
  

   lenger.' 
  By 
  William 
  B. 
  Carpenter, 
  M.D., 
  LL.D., 
  F.R.S 
  234 
  

  

  II. 
  Report 
  to 
  the 
  Hydrographer 
  of 
  the 
  Admiralty 
  on 
  the 
  Cruise 
  of 
  H.M.S. 
  

   ' 
  Challenger' 
  from 
  July 
  to 
  November 
  1874. 
  By 
  Prof. 
  Wyville 
  Thomson, 
  

   F.R.S., 
  Director 
  of 
  the 
  Civilian 
  Scientific 
  Staff 
  on 
  Board 
  245 
  

  

  I. 
  On 
  the 
  Structure 
  and 
  Development 
  of 
  Myriothela. 
  By 
  Prof. 
  Allman, 
  F.R.S. 
  250 
  

  

  II. 
  Some 
  Particulars 
  of 
  the 
  Transit 
  of 
  Venus 
  across 
  the 
  Sun, 
  December 
  9, 
  1874, 
  

   observed 
  on 
  the 
  Himalaya 
  Mountains, 
  Mussoorie, 
  at 
  May- 
  Villa 
  Station, 
  

   Lat. 
  30° 
  28' 
  N., 
  Long. 
  78° 
  3' 
  E., 
  Height 
  above 
  Sea 
  6765 
  feet— 
  Note 
  

  

  III. 
  Appendix 
  to 
  Note, 
  dated 
  November 
  1873, 
  on 
  White 
  Lines 
  in 
  the 
  Solar 
  

  

  February 
  11, 
  1875. 
  

  

  No. 
  I. 
  By 
  J. 
  B. 
  N. 
  Hennessey, 
  F.R.A.S, 
  

  

  254 
  

  

  Spectrum. 
  By 
  J. 
  B. 
  N. 
  Hennessey, 
  F.R.A.S, 
  

  

  259 
  

  

  [For 
  continuation 
  of 
  Contents 
  see 
  Mh 
  page 
  of 
  Wrapper.] 
  

  

  