7 
A cyanide killing-jar, or materials for making same, as 
follows : — 
|-lb, of cyanide of potassium (in lumps), 
lib. of plaster of Paris. 
A glass jar with wide mouth and closely fitting lid. 
Entomological forceps (two pairs), with curved ends, fur 
holding pins. 
One ounce No. 20 entomological pins (D. F. Tayler and Co., 
New Hall Works, Birmingham. These pins are sold in 
boxes at Is. 6d. per ounce, and as the pins are exceedingly 
fine, an ounce will go a very long way). 
Common pins (three or four packets). 
Gun-wad punch, No. 20 bore. 
Cards (4-sheet Bristol Board) from which to punch discs : 
a supply of the latter should be prepared ready for use. 
Needles (two or three) mounted in handles, for arranging 
legs and wings. 
A good pocket lens. 
Cork-carpet or pith — one or two sheets about G in. square, 
on which to perform the operations of pinning, etc. 
A strongly-made wooden box (a cigar-box will do), in the 
bottom of which is fixed a layer of cork-carpet or pith (if 
the latter is used it should not be less than half an inch 
thick). 
Importance of Sending* Home Specimens for 
Determination in tlie Best Possible Condition. 
It should be borne in mind that, for the purpose of the 
scientific determination of species, mosquitoes cannot he col- 
