Handbuch der Spectroscopie. Erster BandCarl Runge, Walter Noel Hartley, Heinrich Kayser · First published 2018Open the Tome
Air and Its Relations to LifeWalter Noel Hartley · First published 1875 · Latest edition 2008Open the Tome
A course of quantitative analysis for studentsHartley, Walter Noel Sir · First published 1887Open the Tome
