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Estimate: $ 600 - $ 800
Freud, Sigmund (1856-1939) Über den Ursprung der hinteren Nervenwurzeln im Rückenmark von Ammocoetes (Petromyzon Planeri).
Vienna: aus der k. k. Hof- und Staatsdruckerei, 1877.
First edition, octavo offprint of Freud's first published paper, from Sitzb. d. k. Akademie d. Wiss. (Math-Naturwiss. Klasse), Abth. III, vol. 75, 4 January 1877; 13 numbered pages with folding lithographic illustration by Schuma after Freud bound after the text; housed in the original printed brown paper wrappers, unopened, 9 1/2 x 6 1/8 in.
"Freud's second piece of student research, on the function of the large Reissner cells in the spinal cord of primitive fish Petromyzon, was assigned to him by Professor Ernst Brücke, head of the Institute of Physiology in Vienna, where Freud had been admitted in the fall of 1876. Freud showed that the Reissner cells 'gave rise to the root-fibres of the posterior roots.' Freud's investigation of the Reissner cells appeared in print three months before the publication of his first original piece of student research, on the gonadic structure of the male eel." (cf. Norman F1).1877
