My object in presenting this paper is to emphasize the diagnostic value of the Roentgen rays in certain neurologic affections in which the etiologic factors constituting the nervous symptoms may be traced back to some obscure pathologic condition. Or, again, when the value of the rays has been abundantly proved as a corroborative measure in the etiology of the symptomatology of some special neurologic condition.
I do not claim that the Roentgen rays will supplant the skilled neurologist in offering a diagnosis; I repeat that this special agent acts most happily for its confirmatory value. In treating of this subject I will follow the Roentgenographic findings rather than the method usually pursued in accordance with the neurologic manifestations.
THE OSSEOUS SYSTEM.
Epiphysitis may simulate a neuritis, as the following case well illustrates: A girl, 4 years of age, complained of constant pain in the heel. The diagnosis seemed to establish