92 ENTOMOLOGICAL NEWS. [Mar., '04 



side of the slot; if pith cannot readily be procured, very thin 

 sheet cork (1-32 inch) can be used. This must be of the very 

 best quality AAA, free from knots and holes. My boards are 

 thirteen inches long and are made from one-quarter inch thick 

 well seasoned white pine, of the quality known as pattern lum- 

 ber. A dozen boards of this length can be made by any boy 

 in half a day. He should first go to a carpenter shop and 

 have this list of sticks cut out by the carpenter and smoothly 

 planed all over. 



8 strips, ^ in. thick, ^ in. wide, 13 in. long (tops). 



13 " (bottoms). 



4 



Ya 1/8 



Va " Va 



Va " iH 



74 



I 



13 " (tops). 



13 " (bottoms). 



13 " (tops). 



^ " 2^ " 13 " (bottoms). 



In addition get about six feet in length of the same boards, 

 }{ inch thick, j4, inch wide, but sawed cross-grain. The above 

 is sufficient for twelve boards of three different sizes. Enough 

 for a beginning. 



To put these together, clear the desk or table of all other 

 objects, separate the different size sticks into piles, have the 

 cork cut into half inch wide strips — or if you can get pith have 

 it ready, one side cut flat, take a razor or extra sharp knife to 

 cut this, and have your glue pot in working order. 



Start first and glue the cork to the bottom side of the top 

 strips by laying two of equal width together and carefully sep- 

 arating them exactly equally their whole length one-sixteenth, 

 one-eighth, or whatever width the slot is to be. Then hold 

 the strip of cork in one hand, and with the brush touch both 

 edges of one side lightly with thin glue (this must be done 

 quickly) ; then lay glued side down on strips, carefully press- 

 ing, but avoid getting any glue into slot or on the center of 

 cork that goes imder slot. 



Very carefully push this pair of tops to far side of table, out 

 of the way, placing a book on them to insure drying firmly 

 and evenly. Continue this operation until all twelve pairs of 

 tops have cork glued under them, and then prepare the bottom 

 boards by attaching the end and side pieces or uprights. These 



