EXPLANATION OF PLATES. 48T 



22f by f. p Front and rear of upper pari of cover, two 

 pieces, 8§ by 19|- by ^. q Sides of upper part of cover, two 

 pieces Sf by 2'2J by |^. r Front and rear of lower part of 

 cover, two pieces, 5 by 19| by|^. s Sides of lower part of 

 cover, two pieces, 5 by 22^ by -|. to Buttons for holding 

 the upper and lower parts of cover together, four, 2 by ] by 

 ■J ; the upper inside part of these buttons is beveled, to allow 

 the upper part of the cover to set down readily on the lower 

 part. 



PLATE IV. Figs. 14 and 15, Hive No. 3. 

 Fig. 14 is a side view, and Fig. 15, a vertical cross section. 

 This hive is intended solely for observation ; (p. 437.) 

 a Base-board, 24-| by 4^ by |-. A f of an inch entrance- 

 hole is bored 3J- inches deep into the end of (a), and two 

 holes are bored in its centre, ^ of an inch in diameterand 1^ 

 inches from center to center, the wood being cut out between 

 them, b Bottom of hive, 2{ by 18|- by ^. Make a rabbet 

 at both upper corners, ^ of an inch on, by -^-^ deep. Start a 

 ^ of an inch hole, one inch from the end, and bore slanting, 

 to meet entrance-hole in (a) and make a hole in the center, 

 to match center hole in (a), for a ventilator, and cover with 

 wire-gauze, on the inside, c Front and rear of hive, 1-^- by 

 2^ by lOf . Rabbet the inner corners, up and down, ^ by ^. 

 Make a ventilator in each piece, like the one in (a). |- of an 

 inch from the upper ends, cut in ^ of an inch, and ^ of an 

 inch from the lower end, cut in ^ of an inch, d Side strips, 

 ^ by 1 by 20|- ; on one corner of each, rabbet on, ^ of an 

 inch and in, ^ of an inch for the glass, e Movable cover, 

 21|^ by 4|- by ^ ; holes maybe made in this cover, as in 

 Fig. 21, over which glass receptacles for honey may be 

 placed. /Glass, two panes, 9^ by 18^. §• Alighting-board, 

 4 by 4i by ^. h Clamps on base-board, 4|- by 2 by ^. 

 i and j Clamps on cover, and ledges on hive, four pieces, 4^ 



by i by i. 



PLATES V AND VI. Figs. 16 and 18, Hive No. 4. 

 Fig. 16 is a vertical longitudinal section, and Fig. 18, a 

 vertical cross section. 



This hive has glass on the back, and being doubled on the 



