Freiburger historische Bestände - digital

CHAPTER III.

THE FISSURE OF ROLANDO.

PACK

I. Historical Notice, . . . .161
II. General Description, .... 162
III. Development, , 169

IV. Topography of the Fissure in Man, . 174
V. Position of the Fissure in Relation to

the Cranial Vault, . . . 180

PAGH

VI. Topogkaphy of the Fissure in the

Apes,......183

VII. The Rolandic Angle, .... 186
VIII. Length of the Fissure of Rolando, . 190
IX. Summary, ...... 192

I. Historical Notice.—The name of " Rolando " was first applied to
this fissure by Leuret* in 1839, and it has very generally been accepted in
France, Italy, and England. At the same time it must be admitted that
Rolando f added little to what was at that time already known of the
fissure. He describes the two convolutions between which it lies, and
likewise figures it; but many years prior to this it had been figured both
by Vicq d'Azyr $ and by Gall and Spurzheim.§ Not only this, but Rolando
freely acknowledges the priority of Vicq d'Azyr in the matter. Broca,[|
in an extremely interesting article, explains how it came about that Leuret
passed over the claims of his own countryman. It would appear that
Leuret possessed an edition of the works of Vicq d'Azyr which was represented
as being complete, and yet which had been mutilated and falsified

* Anatomic coruparee du systeme nerveux. Paris, 1839.

f " Delia struttura degli hemispheri cerebrali." In Memorie del reale Accademia delta
Scienze di Torino, t. xxv., p. 163, 1831.

X Traite d'anatomie et de physiologic. Paris, 1796.

§ Anatomie et physiologie du systeme nerveux en general et du cerveau en particulier.
Paris, 1810.

|| Note sur la topographie cerebrale et sur quelques points de Fhistoire des circonvolutions,
Bulletin de la Academie de Medecine, 8 Aout, 1876, p. 824.

ROYAL IRISH ACADEMY.-CUNNINGHAM MF.1IOIRS, NO. VII. [211