plan of proceeding, after having got one in the net, is to catch hold of the net so that the insect is inclosed in a sort of sack, I then uncork the cyanide, and introduce that into the sack, holding the net firmly round the neck of the bottle, so that there is no other escape for the insect from the net but into the bottle, then gradually work the insect into the bottle and close the mouth with several folds of the net, watch my opportunity and insert the cork: when the insect is stupefied, which happens in a few seconds if the bottle is slightly warm, I turn it into the pill-box. A word of caution: it is necessary to be methodical in carrying the boxes. I always keep the empty ones in my right-hand pocket, and the filled ones in the left-hand one, as, if they are carried sometimes one way, sometimes another, sooner or later a previously filled one will be opened to put an insect in, which will result in the former tenant speedily making room for the new comer; and my experience has been, if you do lose anything it is generally your best capture. Having got home with the left-hand pocket more or less filled, turn the boxes out, preparatory to killing the contents, which must be done with burnt sulphur. My mode of proceeding is as follows:--I stupefy the contents of each box with chloroform, in a manner I will describe farther on. Having stupefied them, I empty them all into a short, wide-mouthed, round bottle, having a piece of glass tube put through the cork; the mouth of the tube is plugged with cotton wool, not too tight, to act as a strainer. I then put this in a Nabob pickle-bottle (any other bottle will do as well), through the stopper of which I have drilled a hole about a sixteenth of an inch in diameter, in which is fixed a copper wire, having a shallow tin cup at the end. In this tin cup is placed the sulphur. The tin cup is then held over the flame of a lamp, gas, or candle, till the sulphur is burning, then put it into the bottle and press it down. When all the oxygen is consumed the sulphur goes out. Leave them for about three hours, take them out, and put them into a damp box for twelve or more hours: they will then be in a splendid condition for setting. To stupefy the insects I tip the lids on one side, put them into the sulphur bottle, pour a drop or two into the tin cup, and put it into the bottle. Be careful not to chloroform them too much, as if killed so they become so rigid that it is with difficulty they can be set.