21 Offprints on physics, acoustics, microscopy, etc., from the Carl Ludwig collection
1852-1893. Helmholtz, Hermann (1821-94). Collection of 21 offprints, as listed below. Various sizes (the largest measuring 303 x 212 mm.). V.p., 1852-93. Most in original printed wrappers; see below for more detailed condition statements. Some browning, chipping and tears due to poor quality paper. Nearly all the offprints bear the..... More