. Sacbrood. Bees. FiQ. 3.—End view of cell capped. The cap is convex, being recently constructed. (Origi- nal.) is also concave on the inside, making it convex on the outside. When freshly constructed the sur- face of the cap (fig. 3) is smooth and and entire and shows considerable convexity. Later, not infrequently it is found to be less convex and somewhat irregular. The cap should remain normally for the most part entire (fig. 8). While this is the rule, there are exceptions to it. The bee- keeper is familiar with the appear- ance which suggests that it had not been entirely completed (fig.


. Sacbrood. Bees. FiQ. 3.—End view of cell capped. The cap is convex, being recently constructed. (Origi- nal.) is also concave on the inside, making it convex on the outside. When freshly constructed the sur- face of the cap (fig. 3) is smooth and and entire and shows considerable convexity. Later, not infrequently it is found to be less convex and somewhat irregular. The cap should remain normally for the most part entire (fig. 8). While this is the rule, there are exceptions to it. The bee- keeper is familiar with the appear- ance which suggests that it had not been entirely completed (fig. 11; PI. II, I). The long axis of the cell is nearly horizontal, the bottom of the cell being normally only sUghtly lower than the mouth. The long axis measures approximately one-half inch, while the perpendictilar dis- tance between any two diametrically opposite side walls is approx- imately one-fifth of an inch. The side walls are each approximately one-tenth of an inch wide. It is in such a cell, then, that the brood of the age at which it r'ies of sacbrood is found. Fig. 2.—Empty worker cell cut in halt along the long axis of the cell, showing cocoons (C) at the base and near the mouth of the cell, and the lowermost angle (A^) farmed by the two walls which constitute the floor (F) of the cell. Enlarged about 8 diameters. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original White, G. F. (Gershom Franklin), b. 1875. Washington, Govt. Print. Off.


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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwa, booksubjectbees