This circumstance is not exclusively due to the lacrymal glands being as yet incapable of secreting tears.
"The Expression of Emotion in Man and Animals" by Charles Darwin
Outside of the eyeball, in the loose, fatty tissue of the orbit, in the upper and outer corner is the lacrymal or tear gland.
"A Practical Physiology" by Albert F. Blaisdell
Tears, the secretion of the lachrymal glands in response to an emotion, are too common a phenomenon to arouse comment.
"Outwitting Our Nerves" by Josephine A. Jackson and Helen M. Salisbury
The eye is moistened by tears from the tear-gland.
"First Book in Physiology and Hygiene" by J.H. Kellogg
The saliva in our mouths, tears, and perspiration, are examples of the secretions of glands.
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
Every one has felt an increased action of the tear-glands from distressing feelings.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
The Lachrymal, or tear gland, lying beneath the upper eyelid.
"A Treatise on Physiology and Hygiene" by Joseph Chrisman Hutchison
Are eyebrows, eyelashes, or tear glands present?
"A Guide for the Study of Animals" by Worrallo Whitney
The essential organs of generation are not muscles, but glands, and who has ever heard of a tear gland atrophying for lack of crying.
"Private Sex Advice to Women" by R. B. Armitage