Women's Medical Journal, 1894.
It is, perhaps, worth while noting that the wisdom of the mediæval Church found an outlet for this "spring fever" in pilgrimages to remote shrines. As Chaucer wrote, in the Canterbury Tales:—
"Whané that Aprille with his showers sote
The droughts of March hath piercèd to the root,
Thaen longen folk to gon on pilgrimages,
And palmers for to seeken strangé stronds."
L. W. Kline, "The Migratory Impulse," American Journal of Psychology, 1898, vol. x, especially pp. 21-24.