De Pulsu, Resorptione, Auditu et Tactu. (Annotationes Anatomicae et Physiologicae. Programmata Collecta. Fasiculi Tres).

Lipsiae, C.F. Koehler, 1834-1851, 4, VIII, 175 pp., (1); VIII, pp.176-258; (4), XI-XV, 120 pp., 1 Taf., feiner Halbledereinband; eine Lage (8 pp.) faksimiliert. Ernst Brücke's copy - First Editions of "De pulsu, resoptione, auditu et tactu" and of the later added Fasiculus II and III. Here the further content: De Organis Gentialibus, Corpuscules Sanguinis Rubris et Lymphaticus, Fibris Elementaribus Fibrinae, Cellulis Vibrantibus, Liquoris Pericardii Utilitate, et de Hepate Aliisque Glandulis. Annotationes Anatomicae et Physiologicae. Programmata collecta. Fasciculus. II., ab anno 1835 usque ad anum 1848. Lipsiae, prostat apud C.F. Koehler, 1851, 4°, XI-XV, pp.177-258 pp. I. Tractatus de Motu Iridis ex anno 1821. II. Summa Doctrinae de Motu Iridis ex anno 1851. Annotationes Anatomicae et Physiologicae. Programmata collecta. Fasciculus. III. Lipsiae, prostat apud C.F. Koehler, 1851, 4°, 116 pp., pp, 117-120 Index programmatum, librorum et commentationum ab E.H. Weber editorum, 1 plate. Still in the year 1851 (the first fasciculus) "De pulso, resorptione, auditu et tactu" (1834) wasn't sold out, so the publisher Köhler printed to promote the sales of this title a new title leave "Annotationes Anatomicae et Physiologicae. Programmata Collecta. Fasciculi Tres. Lipsiae, prostat apud C.F.Koehler, 1851", and added it to the new Fasiculus II and III togehter with supplement sheets for the Index for the pre owner of "De pulsu, resorptione, auditu et Tactu" and created such a new title for sale. The paper of the part of 1834 and 1851 is slightly different and there is also no new print listed in Wilhelm Engelmann's Bibliotheca Medico-Chirurgica et Anatomico-Physiologica, Supplement (1867), p.271 and this explains why this item is such extremely rare. Engelmann erroneously names as publisher, but may then as source "(Leipzig, Ad. Winter)". But Callisen reports correct in volume 20, p.231 "De pulsu (p.1), resorbtione (p.13), auditu (p.25) et tactu (p.44-175). Annotationes anat. et physilogicae. Lips. prostat. ap. C.F.Köhler. 1834. . Rec. Schmidt Jahrb. d.Med. Bd.4. 1834. Decbr. art.145. S.343.44 v. E.H.Weber; ." "A legendary rarity that has been unfindable for many decades -- no doubt because just about nobody but the egregiously eccentric G. H. Fechner paid any attention to it. Fechner, of course, named "Weber's law" after Ernst Heinrich, and gave the name "psychophysics" to the field. Ernst Heinrich Weber (1795-1878)"introduced new methods of measuring sensitivity, establishing perception as an experimental rather than an observational discipline. Working initially with the discrimination of lifted weights, Weber demonstrated that the smallest appreciable difference was a constant fraction of their actual weights. . (He went on to propose) a general law of discrimination that applied to all modalities but with fractions specific to the judgments involved. He introduced the use of calipers to measure two-point thresholds on the skin surface and found that sensitivity varied enormously, with greatest sensitivity around the lips and least on the trunk. The magnitude of the thresholds depended on the areas of the skin stimulated, which led Weber to introduce the concept of sensory circles -- areas on the skin surface that can result in the stimulation of a single peripheral nerve. His work represents a distinct shift in the psychology of perception from philosophy towards physiology, from speculation to experimentation, and from qualitative to quantitative approaches" Nicholas J. Wade, Perception and Illusion, pp.137-138" c.f. John Gach not in the Norman Catalogue, Heirs of Hippocrates or Waller. see - DSB XI:199-201; Boring's History of Experimental Psychology, 2nd ed., pp.110-113; Zusne's Biographical Dictionary of Psychology, p. 454; DSB XI:199-201 Garrison & Morton No. 1457 and 3368 ("Weber's hearing test" (p.41)). …