Berlin: A. Förstner, 1851. First edition, an exceptionally fine copy in original printed wrappers, of this famous work which describes Helmholtz’s announcement of his invention of the ophthalmoscope, one of the most important clinical tools in medicine, which greatly improved the ability of ophthalmologists to diagnose eye disease and revolutionized..... More
Item #6616
Berlin: Akademie der Wissenschaften, 1882-1883. First edition, extremely rare author’s presentation offprints, of all three parts of one of the founding paper of chemical thermodynamics, along with Josiah Willard Gibbs’s 1876 paper ‘On the Equilibrium of Heterogeneous Substances.’ In these papers, Helmholtz introduced the concept of ‘free energy’ and proved..... More
Item #5192
Leipzig: Leopold Voss, 1856-60-66-67. First edition, and the only recorded copy in the original parts, of “the most important book on the physiology and physics of vision” (Grolier/Horblit), and “one of the greatest books on physiological optics” (Garrison-Morton). This work encompassed all previous research in the field, including the results..... More
Item #5275
Berlin: Königlichen Akademie der Wissenschaften, 1868. First edition, very rare, of Helmholtz’s famous and important contribution to non-Euclidean geometry, ‘On the facts which lay at the foundations of geometry’. “Motivated by his study of visual perception, throughout the mid-1860s Helmholtz investigated the most general analytic expressions of spatial relations. He..... More
Item #5428