Lot: 3
Softback publications, mostly 1920s/30s academic papers on Aerodynamics and Seismic Activity, British, American and German, most with front covers dust-affected o/w VG. (69)
Lot: 9
Box of Academic Papers, 1920s/30s, with works on seismology, mathematics, biology, oceanography, ecology etc, chiefly British, some German and American; varied condition with some having punched filing holes; many covers dust-affected o/w good/VG. (146)