. A catechism of natural theology. Natural theology; Anatomy. NATURAL THEOLOGY. 55 and permits a constant renewal from the fountain. Fit A reservoir for water—exhibiting the fountain and outlet. This outlet in the eye is furnished with two small ori- fices, which the anatomists call puncta lachrymalia, or tear holes. The water is conducted along within the eye by a structure of the lids, not very easy to describe ; but entirely mechanical, and the effect of which is to incline the tears to run easily to the open- ing. The ivinJcing of the lids is a part of the contri- vance ; it presses th
. A catechism of natural theology. Natural theology; Anatomy. NATURAL THEOLOGY. 55 and permits a constant renewal from the fountain. Fit A reservoir for water—exhibiting the fountain and outlet. This outlet in the eye is furnished with two small ori- fices, which the anatomists call puncta lachrymalia, or tear holes. The water is conducted along within the eye by a structure of the lids, not very easy to describe ; but entirely mechanical, and the effect of which is to incline the tears to run easily to the open- ing. The ivinJcing of the lids is a part of the contri- vance ; it presses the water toward the place of dis- charge ; and hence the quickened motion of the eye- lids when persons are endeavoring to conceal a tear. B. This now explains the disease we sometimes see in those whose tears run down in a constant stream upon the outside of their faces. T. Yes, and a very serious disease it is : the ori- fices are closed up. Many persons have submitted to the painful operation which is rarely successful, of having the outlet opened anew by artificial means. We see, therefore, the kind intention which provided the opening in the first instance. " It is easily per- ceived the eye must want moisture ; but could the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nichols, I. (Ichabod), 1784-1859. Boston : W. Hyde
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