were trained to destroy all mosquitos on board. (7) When less than 

 a mile from land, all openings were protected by wire or cotton netting, 

 excepting those of the cook's galley, where they were found to cause 

 unbearable heat. The mesh of European-made netting was too wide 

 for the small African mosquitos, but the difficulty was met by greasing 

 the meshes ; this also was a protection against rust. The cotton 

 gauze was found to last longer, being easily replaced and mucK cheaper. 

 A cloth-covered wood or metal frame is best, the netting being lightly 

 stitched to the cloth. The mesh must not be wider than 2 mm. These 

 gauze screens were placed in position at 5.30 p.m. and taken down at 

 6 a.m. The men were not allowed to sleep on deck in those places 

 where it was necessary to use the screens. (8) In order not to attract 

 mosquitos only the lights absolutely necessary were allowed to burn. 



(9) The deck watch wore high boots at night and were allowed to smoke. 



(10) Those men who were landed for survey work were provided with 

 mosquito nets. 



Few mosquitos were seen on board as a result of these measures. 

 One man only was attacked by malaria, and he was a cook working in 

 a brightly-lit galley unprovided with screens. The usual dose of 

 quinine had been administered to him regularly. 



The author concludes by insisting on the need of combining the 

 quinine treatment with mechanical protection against mosquito bites. 

 A bibliography is given. 



Malloch (J. R.). A new species of Simidium from Texas, — Proc. 

 Entom. Soc, Washington, xv, no. 3, Sept. 1913, pp. 133-134. 



Simuliiim distinctum, sp. nov., is described ; it was taken at Devil's 

 River, Texas, on 5th May 1907, at light. 



Eysell (A.). Verbesserte feuchte Kammer zur Stechmuckenzucht. 



[An improved damp chamber for breeding Mosquitos.] — Archiv. fur 

 Schiffs- und Tropen-Hygiene, Leipzig, xvi'i, no. 20, Oct. 1913, pp. 

 712-714, 1 fig. 



The apparatus consists of a saucer half full of water, in which a glass 

 is placed containing a little water and fine white sand, the sur- 

 face of which slants about 30 degrees, so that its lower half only is 

 under water. Over this glass a bigger one is placed upside-down to 

 serve as a cover. The whiteness of the sand shows up the eggs clearly. 

 It is first washed many times and then poured into the glass with 

 water. By tipping the glass the required slant is obtained. Then the 

 water is poured off and the glass placed upright. The water satura- 

 ting the sand drains out and forms the pool referred to above. The 

 dead female is removed and the eggs transferred on a sterilized plati- 

 num palette knife to breeding chambers. To ensure an accurate 

 count of the eggs only one female is introduced at a time. 



Wood (H. P.). Experiments in the use of sheep in the eradication of 

 the Rocky Mountain Spotted Fever Tick.— U.S. Dept. Agric, 

 Bull. no. 45, 22nd Nov. 1913, 11 pp. 



In order to test the possibility of trapping the ST)otted fever tick by 

 means of sheep, some experiments were performed by the 13ureau of 



