A NEW METHOD OF RECORDING AND SEARCHING INFOR MATION H. P. LUHN* This method applies to the procedures re- quired to record a legend concerning a docu- ment and to enable an inquirer to locate this document by means of the legend, if it is related to a specified subject. The conventional methods of indexing and classifying attempt to evaluate the relative im- portance of a plurality of aspects contained in a document and makes the most important one the key for locating the do...