CRANV1P1 ASLIB Cranfield Research Project: Factors Determining the Performance of Indexing Systems: VOLUME 1. Design, Part 1. Text Formation of Index Languages chapter Cyril Cleverdon Jack Mills Michael Keen Cranfield An investigation supported by a grant to Aslib by the National Science Foundation. Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. - 72 - A1 Particles A3 Electron + Beta A4 Proton A5 Atom A6 Isotope A7 Ion A8 Mclecule A[OCRerr]a I.[OCRerr]oi (Structure) A8b Atomic ASc Molecular ASd B Lmolecular A9 Homonuclear A9a Nuclear AlO Monatomic All Diatomic A12 Po!yatomic A13 Polymer A14 Polycryst alline[OCRerr] A15 Matter + Material (By use) A16 Pigment AI7 Lacquer AI8 Phosphorescent A19 Ink A19a InJeetant A20 Fuel A21 Methane A22 Ethylene A23 Hydrocarbon A24 , Methanol A26 Propellant A27 Explosive A28 ThT A30 Coolant A31 Lubricant A32 Refractory A32a Oxidizer (By origin) A34 Electrodeposit A35 Electroformed (By constitution) A38 Metal A39 Alloy A39a Bimetallic FIGURE 5.3 SAMPLE SHEET FROM SCHEDULES OF SINGLE TERMS