First report of the Wellcome Research Laboratories at the Gordon Memorial College, Khartoum / by Andrew Balfour.
- Balfour, Andrew
- Date:
- 1904
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: First report of the Wellcome Research Laboratories at the Gordon Memorial College, Khartoum / by Andrew Balfour. Source: Wellcome Collection.
Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.
39/106 page 35
![Lado Mansonia uniformis. River banks high. S'wampy Culex viridis. island. Bush country be- Culex fatigans. yond. Myzorhynchus paludis. Mimomyia uniformis. M3'zomyia ? It will be seen that several genera previously unrecorded from this pai't of Africa have been found, such as Mucidus, Taeniorhynchus, Theobaldia, Ui'anotajnia and Mimomyia,' while several entirely new genera and species have been secured.- ancrspedeT The White Nile, as might have been expected, was found to harbour many more Anophelines, than the Blue Nile, though the Blue Nile furnishes a good many fever cases in the summer months. Myzorhynchus paludis was very common on the Pibor, where Uranota^nias were also in large numbers, and were very vicious. On the Bahr-El-Jebel ]\[yzumyia funesta, in both its varieties, was a frequent visitor in the evenings. This mosquito was found to reinain on board i^erm^mence of . 7- ij'ii(' • 11 • Anophelines tor several days at a tniie, lying perdu m the folds of curtains and hangings, on steamers in mats and carpets bestowed in heaps, and finding sjoecial sanctuaries on the under surfaces of tables. The steamer on which the captures were made was prevented becoming a breeding ground, and so any fallacy which might have arisen from this source of infection, was obviated. Mr. Young, the engineer, rendered every assistance in his power. Mansonia uniformis is, however, par excellence^ the mosquito of these parts of the Niles, i.e., the Blue Nile from Wad Medani to Roseires, and the White Nile from Renk to Gondokoro, including the Sobat River and Lake No. In the light of this fact it would be well to ascertain if filariasis is common in these reo-ions. It was on this blood-loving insect that a small red tick lookino- like a tiny preserved cherry was first found. This tick Avas afterwards discovered on ^jj^^e mosquno Myzorhynchus paludis, and on several other species. It does not seem to affect the mosquito in any way, and was usually attached to the thorax or abdomen. I have also once seen -what seems to be a green tick. So far, there has not been time to study these parasites more fully, but specimens have been sent to Mr. Theobald. In connection with preventive methods to be adopted at stations in the swamp regions of the White Nile, one would strongly advocate the introduction of sun-flower cultivation. Apart from its water-absorbino- capacities the sun-flower sun-flower • 1 i iMni - cultivation is of great value as an economic product, the oil, seeds, and fibre ah being advocated useful. It has been successfully cultivated in the previously malarial stretches of the Mississipi valley, and is known to grow well and rapidly in the Sudan. As far as the application of culicifuges goes I have found a mixture of equal parts of citronella oil and absolute alcohol, the most effective preparation, and one pleasant to employ. ^ Theobald. Monograph of the Culicidae, Vol. iii. ^ Vide special report by Mr. P. V. Theobald](https://iiif.wellcomecollection.org/image/b21363262_0039.jp2/full/800%2C/0/default.jpg)
