Galvani's discovery provoked an animated debate that lasted for about a decade. So far, historians have studied only the controversy between Volta and Galvani. I show that a more extensive examination of the response to Galvani's treatise reveals a number of important issues that were characteristic of the contemporary physics and physiology but have not much attracted the attention of historians. In particular, the analysis shows the need to reappraise Galvani's role in establishing animal electricity.

The French astronomer La Condamine, sent to Perú to measure an arc of the meridian in 1736, decided to return to France by way of the River Amazon, mapping the river and collecting observations of all sorts. This intention was over-optimistic and the circumstances of the journey prevented La Condamine from gathering much new information or undertaking the necessary observations to improve existing maps. He published three popular versions of the journey but witheld most of the observations that he did (...) make for a later report which was never written. His journals are now lost, but his aims and achievements can be assessed from contemporary documents and the collation of his three accounts. (shrink)

It may be seen, then, that if one was prepared to accept the existence of insulating sheaths on the nerves, all the arguments raised against the proposed identification of the nervous and electrical fluids, except one, could be answered satisfactorily. The single exception involved the question of how an electrical disturbance in the brain could be confined to a single nerve, and, as was indicated earlier, it was scarcely fair to hold this sort of objection against the electrical theory alone. (...) In that case, there remained no convincing argument to show why one should not accept the identification of the two fluids. On the other hand, of course, it remained an open question as to whether there was any convincing argument to show why one should accept the identification either. Galvani thought that his experiments provided just such an argument. (shrink)

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections (...) in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Contemplation De La Nature Charles Bonnet chez Marc-Michel Rey, 1770. (shrink)