1975 Onderstepoort Journal of Veterinary Research, Volume 42, 1975

Contentes Pages: Onderstepoort Journal of Veterinary Research, Vol ??, 19??

CONTENTS
Volume 42: Number 1
Electron microscopy of Cowdria ruminantium infected reticulo-endothelial cells of the mammalian host	Du Plessis, JL	1
Inhibition of macrophage migration in Salmonella immunity	Cameron, CM & Van Rensburg, JJ	15
The effect of Clostridium perfringens epsilon toxin on the blood brain barrier of mice	Worthington, RW & Mulders, MSG	25
Helminths recovered from the bontbok, Damaliscus dorcas dorcas (Pallas, 1776)	Verster, A, Imes, GD Jr & Smit, JPJ	29
Ixodes (Afrixodes) drakensbergensis n. sp. from domestic and wild animals in Natal, Republic of South Africa	Clifford, C, Theiler, G & Baker, M	33
Preliminary report on the transmission of Parafilaria bovicola in South Africa	Nevill, EM	41
An outbreak of ringworm in karakul sheep caused by a physiological variant of Trichophyton verrucosum Bodin	Scott, DB	49
A histological study of the effect of cortisol and some sex steroids on the immune response to sheep erythrocytes by the mouse	Hellig, HR & Gerneke, WH	53
Some observations on the use of D-glucose-2-3H as a tracer in turnover studies in Merino sheep	Van der Walt, JG	63
Research note:
Some protozoan parasites of wild birds from the vicinity of Onderstepoort	Thomas, SE & Dobson, LD	67
Volume 42: Number 2
Vitamin A deficiency in the captive African lion cub Panthera Leo (Linnaeus, 1758)	Bartsch, RC, Imes, GD Jr & Smit, JPJ	43
Blood parasites of some wild Bovidae in Botswana	Carmichael, IH & Hobday, E	55
Immunization of mice and guinea-pigs against Salmonella dublin infection with live and inactivated vaccine	Cameron, CM & Fuls, WJP	63
Studies on schistosomiasis. 7. A comparison of various methods for the infestation of sheep with Schistosoma mattheei	Van Wyk, JA, Heitmann, LP & Van Rensburg, JL	71
Research note:
An apparatus for the restraint of sheep during infestation with schistosomes	Van Wyk, JA	75
Volume 42: Number 3
The occurrence and pathology of chlamydiosis in domestic and laboratory animals : a review	Schutte, AP & Pienaar, JG	77
The partial purification of Clostridium perfringens Beta toxin	Worthington, RW & Mulders, MSG	91
Some toxic, physical and chemical properties of the oral secretion of the sand tampan, Ornithodoros savignyi Audouin (1827)	Howell, CJ, Neitz, AWH & Potgieter, DJJ	99
A rapid spectrophotometric method for the monitoring of embryonic development in ticks (Acarina : Ixodoidea)	Londt, JGH	103
Volume 42: Number 4
Gross and microscopic observations of ovarian abnormalities from five Burchell's zebra, Equus Burchelli antiquorum, Smith 1841	Imes, GD & Smuts, GL	109
Observations on naturally acquired hepatozoonosis of wild carnivores and dogs in the Republic of South Africa	Young, E, De Vos, V, Bigalke, RD, Basson, PA & McCully, RM	117
Blindness and encephalopathy caused by Helichrysum argyrosphaerum D.C. (Compositae) in sheep and cattle	Basson, PA, Kellerman, TS, Albl, P, Von Maltitz, LJF, Miller ES & Welman, WG	135
Author index		149
Subject index		151