295 
On the Distribution of the Different Arteries supplying the 
Human Brain. 
By Cuartes E. Beevor, M.D. Lond., F.R.C.P. 
(Communicated by Professor David Ferrier, F.R.S. Received May 8,— 
Read December 5, 1907.) 
(Abstract. ) 
The present work was undertaken to ascertain the area of distribution of 
the different arteries of the brain, when they were injected simultaneously 
under the same pressure with gelatine containing soluble colours. 
The number of brains injected is 87. The arteries injected were the 
posterior communicating, the anterior choroid, the anterior cerebral, the 
middle cerebral, and the posterior cerebral. 
The previous observations of Duret, Heubner and Kolisko and other 
authors are described. 
The method of investigation consisted in injecting simultaneously by means 
of pressure bottles three, four, or five of these arteries with different soluble 
colours. The injection mass used was gelatine, coloured with soluble carmine, 
Nicholson’s blue, naphthol green, acridine yellow, and Bismarck brown. Twelve 
different classes of experiments are described. The brains were hardened 
in formalin, and subsequently cut and examined in the sagittal, horizontal, 
or coronal planes. 
The most frequent distribution of the basal branches to. the different parts 
is by the following arteries :— 
Regio subthalamica, including the corpus subthalamicum and Forel’s field, 
by the posterior communicating. 
Corpus manmulare, by the posterior cerebral. 
Pes peduncult, anterior one-third by the posterior communicating or anterior 
choroid, posterior two-thirds by the posterior cerebral. 
Internal capsuie, anterior division, by the anterior cerebral in the inferior 
half and by the middle cerebral in its superior half. Posterior division, the 
inferior part, the anterior one-third by the posterior communicating, posterior 
wo-thirds by the anterior choroid, which also supplied the retro-lenticular 
fibres ; the superior part by the middle cerebral. 
Caudate nucleus, caput, inferior half by the anterior cerebral, superior 
half by the middle cerebral. Superior horizontal part by the middle 
cerebral, posteriorly by the posterior cerebral. Surcingle by the anterior 
horoid. 
