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The pleasure or pain which necessarily accompanies all those perceptions or
ideas which we attend to, either gradually subsides, or is succeeded by other
fibrous motions. In the latter case it is termed sootion, as explained in Sect. V. 2,
and VI ...
... to take place in calcined shells and other phosphorescent bodies, after having
been exposed to the light: for in all these cases the spectra in the eye should
either remain of the same colour, or gradually decay, when the object is
... 10, on Instinct—This disagreeable sensation is asterwards excited not only by
a repetition of the found, that was then produced, but by imagination alone, as I
have myself frequently experienced; in this case the idea of biting a china cup, ...
... eye-lids without perceiving that we are in the dark; hence the perception or
idea of light is not changed for that of darkness in so small a time as the twinkling
of an eye; so that in this this case the muscular motion of the eye-lid is performed.
this case the muscular motion of the eye-lid is performed quicker than the
perception of light can be changed for that of darkness.--So if a firestick be
whirled round in the dark, a luminous circle appears to the observer; if it be
whirled somewhat ...
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LibraryThing ReviewUser Review - Devil_llama - LibraryThing
Written by the grandfather of Charles Darwin, this book is a masterful treatise on the medical disorders and how to treat them. Primarily of interest to people who are interested in the period ... Read full review