Abstract
The following is a description of a modified and improved form of the store-box described by Mr. H. Maxwell-Lefroy in Parasitology, vol. iv, p. 174 :—In Khartoum, where the shade temperature is sometimes 116° F., boxes of the type in use at Pusa were found to be unsuitable. The tops and bottoms of many of them split, while the paraffin wax became too soft to hold the cork carpet in position. The type of box which I am now using and which is proving very reliable, differs from the Pusa box in two respects. Instead of being made entirely of teak, the top and bottom are of three-ply wood, and the cork carpet instead of being bedded in paraffin wax is held in position by glue. In all other respects it resembles the Pusa box, the cork carpet being enamelled white above and covered with a mixture of 80 per cent. paraffin wax (melting point 136° F.) and 20 per cent. naphthaline, melted and run in when the glue has become firm.
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