Watts, Marshall W. <br/><br/>
Index of spectra  with an introduction on the measuring and mapping spectra 
Marshall W. Watts                                            
 - Manchester  Abell Heywood  1889 
 - xii, 232p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectra<br/>Spectral Indices<br/>Spectroscopic Analysis
<br/><br/><label>Universal Decimal Class. No.: </label>535.33  / WAT