FACTS OF COLLECTION NUMBER IN A LIBRARY

COLLECTION NUMBER

It is not necessary for a library to arrange all the books in a single sequence , strictly according to class number shelving is affected by their size and format . it would be a wastage of space if octavo books and pamphlets were to be arranged along with books and pamphlets in folios or quarries. 

EXAMPLE: Category of a document such as micro, gramophone, micro fish  etc.

COLLECTION BY UNUSUAL GROSS BODY :- Modern library collect a variety of materials including those having unusual gross body such materials may include film roll , film strip , micro-card , gramophone record , speaking books , ceiling books micro-fiche  and so on .

Experience show that all documents having a similar gross body should form  a distinct collection , because these cannot be shelved with ordinary books. These collection can be named after species of documents contained in each. Thus we can have a film roll collection film strip collection micro card collection and so on.

COLLECTION BY SIZE:-

 Material such as pamphlets , giant folios and miniature books , due to the nature of size , cannot be kept along with ordinary books all documents belonging to the same category should from a separate collection  each collection can be named after the name of species such as  pamphlet collection miniature book collection and so on.



COLLECTION BY RARITY:-
Rare collection is given special attention by a library . It is essential that a separate collection be maintained for such documents under close access . such material may include rare and costly books, incunabula , manuscript, books consisting of plates on waded paper crumpled and worm out books, rolls and so on. It may be noted that characteristic such as those according to size and those according to rarity can overleaf


COLLECTION BY SERVICE EXIGENCY:-

As described earlier , collection may be formed according to unusual gross body or size , here the need would due to physical necessity  very often a separate collection may be formed to provide prompt service so as to satisfy the laws of library science.

• Reading room collection , consisting of way reference work.
• Departmental collection in university and college libraries consisting of documents required frequently.
• Departmental collection in a special library system consisting of documents required frequently.
• Departmental collection in a public library organ on the basis of department .
• textbook collection in academic libraries.

KINDS OF COLLECTION NUMBER

  Ranganathan organized three kinds of collection the permanent collection , the quari permanent collection and the temporary collection. reading room collection and departmental collection of a public library would be permanent collection . The textbook collection of academic library and departmental collection of academic and special libraries are often quari permanent in nature.

COLLECTION NUMBER:-

The collection number of a book is a mark , which indicate the collection to which it belongs , it is added to the class number cum book number of a book . It is not required for documents included in all kinds of bibliography. It is also not permanent in all cases. 

A scheme of collection number, based  on Ranganathan idea is given below :-

Nature of Collection                                                       Collection number 

• Main collection                                                                          No number  
• Temporary collection                                                                 No number 
• Film strip                                                                                   FS
• Gramaphone record                                                                  GS
•  Undersize                                                                                 Underline the book no  
• Oversize                                                                                    Overline the book no
• Abnormal                                                                                  Underline and overline the 
•                                                                                                  book no
• Worn out book                                                                          Encircle the book no 
• Rare book                                                                                 RB
• Reading book                                                                            RR