Part I

. sect. 10.

[31] I do not here enter into the question debated among physiologists, whether pain be the effect of a contraction, or a tension of the nerves. Either will serve my purpose; for by tension, I mean no more than a violent pulling of the fibres which compose any muscle or membrane, in whatever way this is done.

[32] Part II . sect. 2.

[33] Part II . sect. 1.

[34] Part I . sect. 7. Part II . sect. 2.

[35] Part II . sect. 7.

[36] Part II . sect. 10.

[37] Part II . sect. 3.

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