Note 139 — Chapter VII · THE ELEMENTARY STRUCTURE OF THE NERVOUS SYSTEM.
Reading edition
“There was a time,” says Kölliker, “when I confidently believed that an hypothetical explanation of the arrangement of elements in the spinal cord could be grounded on a basis of fact; but the deeper my insight into the minute anatomy, the less my confidence became; and now I am persuaded that the time is not yet come to frame such an hypothesis.”—Gewebelehre, 5te Auf. 1867.