Abstract

References
1.
Abdullah
S.
(1958 ) see M.Sc. Thesis, London, for a review of the literature.
2.
Adachi
B.
(1928 ) Das Arteriensystem der Japaner . Kyoto ; 1 , 148 .
3.
Adamkiewitz
A.
(1886 ) Der Blutkreislauf der Ganglionselle . Berlin .
4.
Bartholdy
K.
(1897 ) Morph. Arb., Jena , 7 , 393 .
5.
Bergmann
L.
Alexander
L.
(1941 ) Arch. Neurol. Psychiat., Chicago , 46 , 761 .
6.
Biemond
A.
(1951 ) Brain , 74 , 300 .
7.
Blunt
M. J.
(1956 ) Ph.D. Thesis, London.
8.
Brain
W. R.
Northfield
D.
Wilkinson
M.
(1952 ) Brain , 75 , 187 .
9.
Frykholm
R.
(1951 ) Acta chir. scand. , 101 , 345 ; 102 , 10 , 93 ; Suppl. 160 .
10.
Hutchinson
E. C.
Yates
P. O.
(1956 ) Brain , 79 , 319 .
11.
Kirgis
H. D.
Read
A. F.
(1947 ) Anat. Rec. , 97 , 348 .
12.
Pickworth
F. A.
(1934 ) J. Anat., Lond. , 69 , 62 .
13.
Ramage
D.
(1927 ) J. Anat., Lond. , 61 , 198 .
14.
Thane
G. D.
(1899 ) In: Quain's Elements of Anatomy . 10th ed . London ; 2 , Pt. II , p. 419 .
15.
Tonkoff
W.
(1898 ) Int. Mschr. Anat. Physiol. , 15 , 353 .
16.
Weddell
G.
Feinstein
B.
Pattle
R. E.
(1944 ) Brain , 67 , 178 .
