! SIGNUM
!            Every book has a shelf signum of max. 12 letters enclosed
!            by < >. All books with the same signum are found in the
!            the same shelf section, except <JOURNAL> and <BIG_ATLAS>.
!            The assigned signum is written on every book's first page.
!
!            NBn=The reference library, section n (the sections are numbered
!                in ascending order beginning in the journal room)
!            GBn=The old library, section n (restricted access)
!
! Signum         Place      Description
!----------------------------------------------------------------------------- 
! 
!                          GENERAL
!                          -------
 <NEW>           NB  1      New and recently arrived literature.
 <BIBL>          NB 27      Bibliographies, Library information.       
 <HAND>          NB 27      Handbooks, Encyclopediae.       
 <HAND_OLD>      GB  6      Handbooks (OLD).                        
 <ADDRESS>       NB 28      Addresses to astronomers and observatories.
 <LANGUAGE>      NB 28      Dictionaries, Grammars etc.
 <DISS>          NB         Dissertations.
 <LOST>                     Books missing from the library.
!
!                          JOURNALS AND SERIES
!                          -------------------
 <JOURNAL>                  Journals, Series etc.
 <ASP>           NB  25     Astr. Soc. of the Pacific Conference Series
 <IAU>           NB  25-27  IAU symposia, transactions, highlights etc.
 <IAU_OLD>       GB  1, 26  IAU publications (old).                  INCOMPLETE
!
!                          UPPSALA PUBLICATIONS
!                          --------------------
 <REPORT>        NB  47     Uppsala Astronomical Observatory Report.
 <PREPRINT>      NB  47     Uppsala Preprints in Astronomy.
 <UAVHAND>       NB  47     Uppsala dissertations.
 <ARKIV>         Archive    Uppsala observatory archive documents.   NOT REG.
!
!                          HISTORY
!                          -------
 <HIST>          NB 28      History of science, Archaeoastronomi.
 <HIST_OLD>      GB 12      History of science. Books printed before 1950.     
 <BIO>           NB 28-29   Biographies, Festschriften 
 <GEO_OLD>       GB  8      Geophysics, Geodesy, Earth magnetism, Meteorology
!
!                          EDUCATION, AMATEUR ASTRONOMY
!                          ----------------------------
 <STUD>          NB 45      Student library.                         
 <AMAT>          NB 46      Amateur astronomy.                         
 <EDU>           NB 45      Educational material.                  
!
!                          MATHEMATICS, COMPUTERS
!                          ----------------------
 <MAT>           NB 29      Mathematics, Statistics.                   
 <MAT_OLD>       GB  6      Mathematics, Statist., Math. tables (OLD).
 <MAT_CAT_OLD>   GB  6      Mathematical tables (OLD)            NOT REGISTERED
 <DAT>           NB 29      Computers, Numerical analysis, Programming.
! 
!                          OBSERVATORIES AND TECHNIQUES
!                          ----------------------------
 <OBS>           NB 29      Observatories, Telescopes, Optical observing tech.
 <OBS_OLD>       GB 11      Observatories, Telescopes, etc. (OLD)
 <OBS_DOC>       NB 30      Observatory manuals.                       NOT REG.
 <OPTICS>        NB 30      Optics.                                    
 <PHOTOMETRY>    NB 30      Photometry.                                
 <IMAGE>         NB 30      Photography, CCDs, Image analysis.         
 <SPEC>          NB 30      Spectroscopy.                              
 <RADIO>         NB 30      Radio astronomy, Submillimeter astronomy.  
 <IR>            NB 31      Infrared astronomy.                        
 <UVX>           NB 31      Ultraviolet, X-ray, Gamma astronomy.       
 <SPACE>         NB 31      Space exploration, Astronautics.           
 <LIFE>          NB 31      Astrobiology.                              
 <ESA>           NB 31-32   ESA publications.                      
 <ESA_OLD>       GB 26      Older ESA publications.                   NOT REG.
 <ESO>           NB 32      ESO publications.                         NOT REG.
!
!                          CLASSICAL ASTRONOMY AND TEXTBOOKS
!                          ---------------------------------
 <AST>           NB 32      Astronomy (elementary textbooks).
 <AST_OLD>       GB 10      Astronomy (textbooks printed before 1950).         
 <SPHERE>        NB 33      Spherical astronomy, Astrometry.
 <SPHERE_OLD>    GB  9      Spherical astronomy (books printed before 1950)   
 <TIME>          NB 33      Calendars, Almanacks, Ephem., Eclipse geometries. 
 <TIME_OLD>      GB 7-9     Calendars, Almanacks, Ephemerides (old). INCOMPLETE
 <NAV>           NB 33      Navigation, Geodesy, Surveying.
 <NAV_OLD>       GB  9      Navigation (books printed before 1950).
 <CEL>           NB 33      Celestial Mechanics, Many body systems.
 <CEL_OLD>       GB  9      Celestial mechanics, Older books.    
! 
!                          THE SOLAR SYSTEM
!                          ----------------
 <SS>            NB 34      Solar System (general), Cosmogony.
 <SS_OLD>        GB  7      Solar System (books printed before 1950)
 <PLANET>        NB 34      Planets (bulk and surface properties).  
 <ATMOS>         NB 34-35   Atmospheres, Magnetospheres, Solar influence.
 <MOON>          NB 35      The Earth's Moon.               
 <SAT>           NB 35      Satellites and planetary rings. 
 <ACM>           NB 35      Asteroids, Comets, Meteors.              
 <SS_DOC>        NB 36      Solar System atlases and catalogues.       
!
!                          STELLAR ASTRONOMY AND ASTROPHYSICS
!                          ----------------------------------
 <STAR>          NB 36      Stars (structure and evolution).           
 <SUN>           NB 37      Solar Physics.
 <SUN_OLD>       GB  7      Solar Physics (books older than 1950).             
 <SPEC_STAR>     NB 37      Special groups of stars.                   
 <COMPACT>       NB 37      White dwarfs, Neutron stars, Black holes. 
 <BINARY>        NB 37-38   Binary and multiple stars.                 
 <VAR>           NB 38      Variable stars, Novae, Supernovae.      
 <CIRC>          NB 38      Circum stellar matter, Mass loss.          
 <CLASS>         NB 38      Stellar classification                     
 <STEL_ATMOS>    NB 36      Stellar atmospheres.                       
 <ELEM>          NB 38      Elemental abundances, Nucleosynthesis.  
 <PHYS>          NB 38      Physics (general).
 <PHYS_OLD>      GB  7      Physics (books printed 1850-1950)
 <TELE>          GB  7      Telegraphy (OLD)            
 <PLASMA>        NB 38      Plasma physics, Hydrodynamics.             
 <RAD>           NB 39      Atomic physics, Radiative transfer.        
 <ASTROPHYS>     NB 39      Astrophysics                               
 <CRAY>          NB 39      Cosmic Rays.                               
!
!                          INTERSTELLAR AND GALACTIC ASTRONOMY
!                          -----------------------------------
 <MILK>          NB 39      Milkyway galaxy, Star clusters, Stellar statistics.
 <NEB>           NB 40      Interstellar matter, nebulosities, Star formation. 
!
!                          EXTRAGALACTIC ASTRONOMY AND COSMOLOGY
!                          -------------------------------------
 <GALAX>         NB 40      Galaxies (general, dynamics etc.).         
 <GALAX_EV>      NB 40      Formation and evolution of galaxies.       
 <ACTIVE>        NB 41      Active Galaxies, Quasars.                  
 <LARGE_SCALE>   NB 41      Large scale structure of the Universe.     
 <COSM>          NB 41      Cosmology, Big Bang, Very high energy physics.
 <GRAV>          NB 42      Gravity, Relativity.                       
 <GALAX_DOC>     NB 42      Extragalactic catalogues and atlases.      
!
!                          CATALOGUES AND ATLASES NOT APPEARING ABOVE
!                          ------------------------------------------
 <STAR_CAT>      NB 44      General star catalogues.                   NOT REG.
 <STAR_CAT_OLD>  GB 54      Older general star catalogues.            
 <VAR_CAT>       NB 43      Catalogues of variable stars.
 <BIN_CAT>       NB 43      Catalogues of binary stars
 <CLASS_CAT>     NB 43      Catalogues of spectral classification.
 <MOTION_CAT>    NB 43      Catalogues of stellar proper motion.
 <RADIAL_CAT>    NB 43      Catalogues of stellar radial velocities.
 <IR_DOC>        NB 43      Catalogues and atlases of IR astronomy.    
 <UVX_DOC>       NB 43      Documentation on UV, X-ray and gamma astronomy.
 <SUN_DOC>       NB 43      Catalogues and atlases of solar physics.   
 <GEN_ATLAS>     [        ] General astronomical atlases.
 <SKY_ATLAS>     [ Tamm-  ] Sky atlases.
 <SPEC_ATLAS>    [        ] Atlases of stellar spectra.
 <PHYSICS_DOC>   [        ] Physics documents, e.g. lab. spectra, trans. prob.
 <MILK_ATLAS>    [ salen  ] Atlases of the Milky Way.
 <MAGEL_ATLAS>   [        ] Atlases of the Magellanic clouds.
 <CLUSTER_DOC>   [        ] Catalogues and atlases of stellar clusters.
 <BIG_ATLAS>     [        ] Big atlases.                             INCOMPLETE
 <CAT_OLD>       GB 46      Catalogues (old). TWO LOWEST SHELVES ARE REGISTERED
!
!                          VARIOUS
!                          -------
 <VAR_AST>       NB 34      Various astronomical books                 
 <FICH>          NB         Microfich.                              BAD VERSION
 <TAPE>          Archive    Magnetic tapes.                         BAD VERSION
 <CD_ROM>        NB 46      CD ROM
 <NOT>           La Palma   Books deponated on La Palma.
! 
! 
!
 <ALPHA>                    Alphabet (for internal use only).
 <REFER>                    References to alternative names (for internal use).
!------------------------------------------------------------------------------ 
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