476 
THE  AHMIEALTY  ASTEONOMICAL  EXPEEmEYT 
“ Many  subjects  of  investigation  relating  to  astronomy,  physics,  or  meteorology,  will 
probably  suggest  themselves  to  the  observer  when  on  the  Peak,  the  selection  and  elabo- 
ration of  which  are  best  left  to  his  own  judgment.  There  are  also  various  points  of 
interest  relating  to  the  geology  and  geography  of  this  region,  which  Professor  Simn 
may  possibly  find  time  to  attend  to. 
(Signed)  “ Wm.  Shaepet, 
SecretaryT 
(3.)  Execution  of  the  Work. 
Having  embarked  at  Southampton  on  board  Mr.  Stephexsox’s  yacht  ‘ Titania.’  with 
all  the  instruments  and  baggage,  we  crossed  over  to  Cowes  for  stores,  and  setting  sail 
from  thence  on  the  24th  of  June,  reached  Santa  Cruz  in  TeneiifFe  on  the  morning  of 
July  the  8th.  On  July  the  14th  we  ascended  the  mountain  with  the  greater  part  of  the 
instruments,  and  occupied  a station  (Guajara)  on  the  circle  of  the  “great  crater,”  at 
the  height  of  8903  feet,  from  that  evening  until  August  the  19th.  On  the  20th  we 
ascended  to  a more  elevated  station  (Alta  Vista)  on  the  sides  of  the  Peak,  or  centi'al  cone, 
at  a height  of  10,702  feet;  from  thence  visited  the  top  of  the  mountain,  12,198  feet  in 
height;  and  finally  descended  to  the  sea-level  on  the  19th  of  September.  On  Septem- 
ber the  26th  we  re-embarked  in  the  yacht,  and  returned  to  Southampton  on  the  14th  of 
October;  having,  with  an  absence  from  home  of  113  days,  spent  so  large  a proportion 
as  65  days  at  the  heights  mentioned  above. 
The  chief  numerical  results  are  contained  in  ten  MS.  books,  as  thus : — 
Vol.  1.  Astronomical  and  Physical  Journal. 
Vol.  2.  Mountain  Meteorological  Journal. 
Vol.  3.  Reduction  of  the  above. 
Vol.  4.  Sea-level  Meteorological  Joiumal. 
Vol.  5.  Reduction  of  the  above. 
Vol.  6.  Illustrations  to  the  Astronomical  Journal. 
Vol.  7.  Results  and  Conclusions, — Astronomical. 
Vol.  8.  Results  and  Conclusions, — Physical  and  Meteorological. 
Vol.  9.  Results  and  Conclusions, — Geological,  Botanical,  &c. 
Vol.  10.  Photographs. 
Prom  the  manner  in  which  the  observations  are  exhibited  in  the  above  books,  they 
will  be  found,  I trust,  to  explain  themselves.  In  many  cases  they  must  be  studied 
originally  and  in  the  full,  to  enable  all  their  meaning  and  significance  to  be  appreciated. 
In  others,  I may  be  able  to  save  investigators  some  trouble,  by  collecting  together  all 
the  measures  of  special  phenomena,  and  indicatmg  the  results  and  conclusions  to  which 
they  lead,  as  in  the  following  pages. 
No  inconsiderable  part  of  the  thermometric  and  other  meteorological  observ  ations  on 
the  mountain  were  made  by  the  second  mate  of  the  yacht,  William  Coeke,  who  accom- 
panied me  there,  together  with  the  carpenter,  William  Neale,  whose  services  were  of 
