It relates to the action of one millionth of a grain of atropine on the eye.
"The Life and Letters of Charles Darwin, Volume II (of II)" by Charles Darwin
With others hypodermic injections of morphia and atropine have given equally satisfactory results.
"Diseases of the Horse's Foot" by Harry Caulton Reeks
Who told you, Clodagh, that Peters takes atropine?
"The Purple Cloud" by M.P. Shiel
The artificial atropine is identical with the natural alkaloid.
"Scientific American Supplement, No. 415, December 15, 1883" by Various
I needn't tell such a clever girl as you that atropine acts first on the throat.
"The Ghost" by Arnold Bennett
Hypodermic injections of 1/50 grain of atropine, suprarenal or pituitary extracts, may be found useful.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
The use of small doses of atropin and ergotin was recommended by von Bergmann.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
He finds also in this mushroom muscarin and an atropin-like alkaloid.
"Student's Hand-book of Mushrooms of America, Edible and Poisonous" by Thomas Taylor
The atropine was to prevent nausea.
"Shadows of Flames" by Amelie Rives
Tropane group; atropine, hyoscine, cocaine, lupinine.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher