Fig. 9.
A Folium metallicum ex stamno tubo vertebrali praeparatae ranae appositum.
B B Crura.
C Folium alterum metallicum ex aurichalco.
D Arcus aenus argenteo folio obductus.
F Planum vitreum, supra quod animal est positum.
Fig. 10.
A A Arcus duo, qui vitreo, vel resinoso cylindro B sunt inserti.
C Uncus spinali medullae infixus.
Fig. 11. Praeparata rana, cujus crus alterum suspensum detinetur, alterum vero cum vertebrali tubo suo unco instructo planum argentae capsulae E attingit.
Fig. 12.
F F Arcus duo metallici, quorum unus aerus est, alter ex argento confectus.
Fig. 13.
G G Metallici conductores, quorum unus superiori, alter inferiori armatae superficiei quadrati magici est appositus.
H Nervi ita ad oram quadrati magici inflexi, ut inferiorem superficiem attingant, una cum spinali medulla.
Fig. 14.
K Vitreus tubus, qui diversis fluidis repletur.
Fig. 15. Crura ad invicem sejuncta.
Fig. 16. Crura ab invicem sejuncta, & vertebralis tubus bifariam sectus.
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- 2006-04-17 16:41 Delmar 1067×754× (139641 bytes) Disegno che illustra alcuni degli esperimenti effettuati da Galvani sulle rane. Credit: Dall'opera ''De viribus electricitatis... in motu musculari commentarius'' del 1791 - ampiamente diffusa sul web e dal copyright scaduto.