There is another good method of stuffing moths that possesses a decided advantage over the one just described, since it leaves the specimen in such a perfect condition that it shows no appearance of having been stuffed when viewed from either side. This consists in snipping off the abdomen at the waist, clearing out the contents with a hooked wire, lightly stuffing it with cotton wool pushed in at the waist, and then setting it aside to dry, while the other part of the insect is undergoing the same process on the setting board. When both parts of the moth are thoroughly dry, the stuffed abdomen is easily fixed in its place with a little coaguline; and this, if neatly done, will not show the slightest sign of the treatment to which the insect has been submitted. Even after your insects are finally housed in the cabinet, they are subject to two other dangers, both of which are more destructive to moths than to butterflies. One is technically known as 'grease,' and the other is the invasion of certain museum pests that feed on the specimens, causing them to fall to pieces. Examine the moths that have been for a time in the cabinet, and some are sure to exhibit an oily or greasy appearance, the hairs of the abdomen, and perhaps also of the thorax, being clogged together just as if the specimen had been dipped in oil, the same miserable condition perhaps being shared also by parts of the wings. This is due to the gradual oozing out of the fatty matter that is always present to a greater or less extent in the bodies of the insects, and which must necessarily show itself more sparingly in specimens that have been carefully stuffed. The old saying, 'Prevention is better than cure,' applies well in the present case; but as there are times when a knowledge of the 'cure' is the only means of saving a valuable specimen from destruction, we will study both. To deal with the two in the order of the well-worn proverb, we will consider the prevention first. Always carefully clean out and stuff the abdomens of large-bodied insects; and as a rule, treat them with some substance that will either absorb or dissolve out all oily matter. I think the best plan is to remove the abdomen, clean it out if its size permits of such an operation, and then, after labelling it to prevent its future application to the wrong body, either let it remain in a bottle of magnesia for several weeks, or soak it in benzole or ether for a few hours or longer.