ON THE DENSITY OF THE CUTANEOUS INNER- 
VATION IN MAN. 
By CuHaArRLes E. INGBERT. 
(Yrom the Neurological Laboratory of the University of Chicago.) 
I. INTRODUCTION. 
Il. THeE RELATION OF THE CUTANEOUS AND THE MUSCULAR NERVE 
FIBERS OF THE DORSAL ROOTS OF THE SPINAL NERVES OF MAN. 
rT. Lstimate Based on Stilling’s Results. 
Estimate Based on Votschvillo’s Results. 
3. Estimate Based on the Author’s Enumeration. 
4. Comparison and Discussion. 
ly 
III. DETERMINATION OF THE AREA OF THE DERMAL SURFACE OF THE 
HUMAN Bopy. 
I. Krause’s Determination. 
2. Funke’s Determination. 
3. Fubini and Roncht’s Determination. 
4. Mech’s Determination. 
5. Summary of Determinations. 
IV. THE INNERVATION OF THE DERMAL SURFACE OF THE HUMAN Bopy. 
1. Donaldson's Estimate. 
2. Votschvillo’s Estimate. 
3. Author's Estimate. 
4. Comparison and Discussion. 
V. THE BEARING OF THE AUTHOR’S ESTIMATE OF THE INNERVATION OF 
THE DERMAL SURFACE ON THE THEORY OF THE SPECIFIC ENERGIES 
oF NERVES. 
VI. SUMMARY. 
VII. BIBLIOGRAPHY, 
I. INTRODUCTION. 
It was, at first, the author’s intention to publish this dis- 
cussion as a part of his more extended paper on the ‘‘ Enumer- 
ation of the Medullated Nerve Fibers in the Dorsal Roots of 
the Spinal Nerves of Man.” This, however, was found im- 
