Abstract

References
1.
Allison
V. D.
(1938 ), Lancet (i ), 1067 .
2.
Bendixen
H. C.
(1937 ), Quart. Bull. Health Organ., League of Nations , 6 , 431 , 496 .
3.
Bendixen
H. C.
Minett
F. C.
(1938 ), J. Hyg. , 38 , 374 .
4.
Brown
J. H.
(1939 ), J. Bact. , 37 , 133 .
5.
Coffey
J. M.
(1937–8 ), Am. Pub. Health A. Year Book , 28 , 104 .
6.
Brook
L. Cole
Purdie
A. W.
(1937 ), Lancet , (ii ), 1240 .
7.
Congdon
P. M.
(1935 ), ibid , (ii ), 1287 .
8.
Fry
R. M.
(1938 ), ibid , (i ), 109 .
9.
Hare
R.
(1935 ), J. Path & Bact. , 41 , 499 .
10.
Id. (1937 ), Canad. Pub. Health J. , 28 , 554 , 596 .
11.
Henningsen
E. J.
Ernst
J.
(1939 ), J. Hyg. , 39 , 51 .
12.
Hill
A. M.
Butler
H. M.
(1940 ), M. J. Australia (i ), 293 .
13.
Lancefield
R. C.
(1940–41 ), The Harvey Lectures (U.S.A.), Series
36 , 251 .
14.
Lancefield
R. C.
Hare
R.
(1935 ), J. Exper. Med. , 61 , 335 .
15.
Minett
F. C.
(1932 ), Vet. Rec. , 12 , 545 .
16.
Id. (1937 ), Proc. Roy. Soc. Med. , 30 , 95 (Sect. Med., 31).
17.
Pomales-Lebron
A.
(1940 ), Puerto Rico J. Pub. Health & Trop. Med. , 16 , 66 .
18.
Pullinger
E. J.
Kemp
A. E.
(1937 ), J. Hyg. , 37 , 527 .
19.
Ramsay
A. M.
Gillespie
M.
(1941 ), J. Obst, & Gynœc. Brit. Emp. , 48 , 569 .
20.
Rantz
L. A.
Keefer
C. S.
(1941 ), J. Infect. Dis. , 68 , 128 .
21.
Rosenthal
A. H.
Stone
F. M.
(1940 ), J.A.M.A. , 114 , 840 .
22.
Savage
W. G.
(1911 ), Proc. Roy. Soc. Med. , 4 , (Sect. Epid., 73).
23.
Id. (1931 ), ibid. , 24 , 1703 .
24.
Id. (1937 ), ibid. , 30 , 951 (Sect. Med., 25).
25.
Simmons
R. T.
Keogh
E. V.
(1940 ), Australian J. Exper. Biol. & M. Sc. , 18 , 151 .
26.
Smith
F. R.
Sherman
J. M.
(1938 ), J. Infect. Dis. , 62 , 186 .
27.
Smith
J.
(1939 ), J. Dairy Research , 10 , 355 .
28.
Broadhurst
J.
Cameron
G.
MacLean
M. E.
(1939 ), Cornell Vet , 29 , 371 .
29.
Francis
J.
(1941 ), Vet. Rec. , 53 , 395 .
30.
Munch-Peterson
E.
Murname
D.
Bull
L. B.
(1940 ), Bull. Coune. Sci. industr. Res. Aust. , No. 134, 22 –56 .
31.
Peterson
E. H.
Hastings
E. G.
(1939 ), Cornell Vet. , 29 , 11 .
32.
Stang
Lerche
Nieder
(1937 ), Deutsche tierärztl. Wchnschr. , 45 , 337 .
33.
Witt
(1936 ), Deutsche Landw. Tierz. , 28 , 468 .
