SAO Annals, Volume I, parts I and II

Note, plates have been scanned into multiple images when they were larger
than one page.

Plate  I  -- The Astrophysical Observatory
      II  -- Bolographs of D lines taken in 1893 and 1898, 
               illustrating the decrease in accidental disturbances
     III  -- Plan of Observatory buildings and lot, 1900
      IV  -- Plan of main Observatory building, 1897
       V  -- Section through main Observatory building, 1897, looking west
      VI  -- Spectrometer room, 1896, looking south
     VII  -- Galvanometer room, 1896, looking west
    VIII  -- The siderostat, looking east
      IX  -- Plan view of the spectrometer
       X  -- Side elevation of the spectrometer
      XI  -- The bolometer and special rheostat, form used 1896 to 1898
     XII  -- Details of bolometer and special rheostat, form used 1896 to 1898
     XIIA -- Working drawing for combined bolometer and rheostat
    XIII  -- The driving clock of the spectrobolometer
     XIV  -- The photographic recording apparatus of the spectrobolometer
      XV  -- The galvanometer and its accessories
     XVI  -- The comparator
    XVII  -- Galvanometer and battery records, 1895 to 1898
   XVIII  -- Early bolographs of the infra-red solar spectrum
     XIX  -- The infra-red solar spectrum of a 60 deg rock-salt prism.  
               Composite line spectrum from bolographs of 1896
     XIXA
     XIXB
      XX  -- The infra-red solar spectrum of a 60 deg rock-salt prism.  
               From bolographic observations of 1897-98
      XXA
      XXB
      XXC
      XXD
      XXE
      XXF
      XXG
      XXH
      XXI
     XXIA -- Bolograph of the infra-red solar spectrum of a 60 deg glass prism
     XXIB
     XXIC
     XXID
     XXIE
     XXIF
    XXII  -- Bolographs of the solar spectrum absorption bands w_1 and w_2 
               showing the increase in absorption in w_1 with declining sun
   XXIII  -- Bolographs of the visible and infra-red solar spectrum of a 60 deg 
               rock-salt prism
   XXIIIA
   XXIIIB
   XXIIIC
    XXIV  -- Normal map of the infra-red solar spectrum absorption bands w_1 
               and w_2 showing the increase in absorption in w_1 with declining sun
    XXIVA
    XXIVB
     XXV
     XXVA
     XXVB
    XXVIA -- The relative dispersion of rock salt and fluorite in the infra-red spectrum
    XXVIB
    XXVIC -- The dispersion curve of fluorite in the infra-red spectrum
    XXVID
    XXVIE
    XXVIF
    XXVIG
    XXVIH
   XXVII  -- Diagram of apparatus used to determine the dispersion of rock-salt
  XXVIII  -- The dispersion of a 60 deg rock-salt prism
    XXIX  -- The dispersion curve of rock salt in the visible and infra-red spectrum
    XXIXA
    XXIXB
    XXIXC
    XXIXD
    XXIXE
    XXIXF
     XXXA -- Bolographs of the infra-red solar spectrum of a 60 deg rock-salt prism, 
               typifying the yearly variations in the absorption in spring, summer, 
               autumn, and winter
     XXXB 
    XXXIA -- Spectrum energy curves of Welsbach and other heated mantles, 
               from bolographs with a 60 deg rock-salt prism
    XXXIB
   XXXII  -- The dispersion curve of rock salt.  Various observers