386 EXPLANATION OF PLATES. 



lar checks to hold the case when debated, two pieces, 3" long x If" 

 X J" at one end, and ^" x y^" at the other. Chiides on outside of 

 case (see Kg. 19, p. 48), four pieces, IJ" x 2" x f". Cover to up- 

 per ventilator of case, one piece, 24" x 1" x |" hung on buttons 

 with screws; this ventilator is made by boring holes about f" in 

 diameter in the rear of upper part of case, |" below (2). 



No. 2, Box Hive, as made by Mr. Colvin, see drawing on page 390, 

 with box-cover and observing glass in rear end.- 



Bottom (in two pieces only, plowed and grooved together, the 

 grain of the wood running across the hive), 24f" x 14 J" x -I"; rabbet 

 across under side of ends -j^" on, y^" in, forming tongue ^" x yV on 

 upper side of ends, which are let into groove in sides. Sides, two 

 pieces, 24|" x 10|" x |", cut out from front end on top edge, 4" x 

 Ij" deep, for portico roof ; on inside, ■■5\"^up froni bottom edge, cut 

 a groove -j^" x -j^" the entire length, to receive tongue on bottom- 

 board ; 4" back from front end, from If" up from bottom edge, cut 

 a groove t^"x J" to within |" of the top edge to let in front; 

 (these sides are nailed to bottom same as No. 5). Portico roof, 

 one piece, 17^" x 4f " x |-" ; bevel on top side, to |" thick at front 

 edge, back 2|" to full thickness : front edge rounded from upper 

 side. Froni, one piece, 14f-" x 8J" x J", let into sides -^" at 

 each end. Ohserving-glass in rear, 14" x 6"; strips to form 

 rabbet for glass, -j" x ^", naiied all around the space left for the 

 glass, and within ^" of inside of hive. Hear end, two pieces, 

 14J"xl^"x J", one of these nailed to a piece 15f"xl^"x|", so 

 that the bottom edges wiU be flush with each other, is to be dove- 

 tailed into the ends of sides ^" up from the top side of bottom- 

 board, the other to be nailed to a piece 14 1" x I" x 2|", on one 

 side, and 1 J" on the other, the top edge of the inside piece |" below 

 the outside piece ; then nail these pieces between the sides of 

 hive, so that the square edge and widest side come flush with the 

 ends and tops of sides. Cover for ohserving-glass,. on~e piece, 

 14" X I" X 6J" inside x 6|" outside, the bevel being made on 

 the upper edge ; clamps on this coyer, two pieces, 6|" x 11" x I", 

 screwed in the middle and nailed at ends on the outside of cover, 

 each projecting ^" over its end to cover the joint. Ledges around 



