170 APEOEISirATA ENTOMOLOGICA. 



collectors. Also, if threads be used, you will find that unless very great care 

 be used to wind the thread round as lightly as possible, it will leave marks 

 of its bandage on the wings, and even with the greatest care it is hardly 

 possible with some species to avoid this; as for instance with the Whites and 

 the Blues. To avoid this, therefore, some collectors first fix the wings on the 

 (deal) wood with a pin in each of the two fore ones to the desired extent, 

 and then by placing a smaU piece of silver paper on them the thread is wound 

 round and round them without any detriment. 



But to return; the pieces of wood when first turned, will of course be 

 rounded down to the edge, but you will find that, if left so, it will be very 

 diificult to take them up from any flat surface on which they may happen to 

 stand; and to remedy this defect, you must have them cut off with a saw or 

 a chisel on the other three sides besides that on which they have already 

 been dissevered from the oblong turned piece; also, a narrow piece will have 

 to be cut out transversely in the middle of each, to about half their depth, 

 and a proportionate strip of cork be glued at the bottom of the cleft, filling 

 it up half way again, and be shaved otf to the shape of the wood on the 

 side towards you: on this the insect is to be placed, and placed upright, with 

 the pin straight — perfectly straight, through it, that is to say, through the 

 middle of the thorax: otherwise, let me again and again impress on you, the 

 insect will never look well, no, not though ever so well set. 



Let thus much then suffice for the ground work: now for the further 

 illustration, by way of clue to the "net-y-covered" labyrinth. 



The thread to be procured is some that is used in "crotchet work," and 

 commonly known by the name of "Moravian thread." It is not generally 

 obtainable at a draper's, but is to be (-ought for at one of those shops in 

 which Berlin wool and the materials for ladies' fancy work are sold. Thread 

 of the same kind, or at least one that appears to be so, being in fact the 

 single "strands" that compose a thread before they are twisted together into 

 one, is to be procured in the manufacturing districts, being there known by 

 the name of "Cop thread." If this is wound in a single thread on a spool, 

 place the spool on a bar of wire or wood, as in tlie plate, and the means for 

 extending a lepidopterous insect wiU, so far, be always ready to your hand. If 

 it be not wound in a single thread, but two or three together, not indeed 

 twisted, but singly, so to speak, you will probably have some kind female 

 friend, some "neat-handed Phyllis," who will unravel the difficulty for you, 

 and accomplish the work to your entire satisfuL-tiuu. This I speak of the 

 Moravian thread, but if you cannot have any wound singly, "French Embroidery 

 Cotton," if equally fine, will be found equally excellent for the purpose. 



N'ext, then, having fixed the pin which holds the insect — always, "Be it 

 remembered," carefully and completely killed in the first instance of all — 



