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Metabolic effects of the corpus allatum hormone in the desert locust, schistocerca gregaria
(University of Nairobi, 1965-09)
SOME thirty years ago, Wigglesworth1 first demonstrated that yolk deposition in insect oocytes is controlled by the corpus allatum hormone. Since then, the hormonal control of vitellogenesis has been complicated by some ...
The architecture of the accessory reproductive glands of the male desert locust: 2: Microtubular structures
(University of Nairobi, 1969)
Cytoplasmic microtubules are distributed widely in the mature accessory reproductive glands of the male desert locust. They are not concentrated in any particular region of the cytoplasm, but they appear to be closely ...
Temperature regulation in the hyrax
(University of Nairobi, 1969)
1. Th hyrax are medium-sized African mammals (2–3 kg) which look like large rodents but possess taxonomic affinities with the elephant. Their behavior suggest that basking in the sun plays an important role in the regulation ...
The reproductive system of male rock hyrax (Procavia and Heterohyrax)
(University of Nairobi, 1968)
The male genitalia of the rock hyrax (Procavia and Heterohyrax) are described. Features of the gross anatomy and histology of the testes and male accessory organs are presented, and comparison is made between the sexually ...
The feeding behaviour of bock hyraces (genera procavia and heterohyrax) in Kenya
(University of Nairobi, 1965)
1. The paper is based on field observations and studies of a captive colony.
2. A classified list of food plants is discussed under the headings of lowland habitat, drought conditions and alpine habitat. Rock hyraces ...
The metabolic effects of the corpus allatum hormone in the male desert locust
(University of Nairobi, 1966-08)
1. An account is given of the pattern and intensity of the spontaneous locomotor activity of adult males of the desert locust. It is shown that desert locusts exhibit almost continuous activity under continuous light ...
Tumours of the liver, kidney and lungs in rats fed encephalartos hildebrandtii
(1968)
Encephalartos hildebrandtii is a palm-like plant which belongs to the family Cycadaceae. The plant bears large pineapple-like cones. When the cones
mature they fall off and expose the seeds. The seed consists of a hard ...