116 The Bee's Tongue, and Glands connected with it, [ February, 
to the opening in the mouth at 4. Beyond that I had to resort to 
dissection, not extremely difficult with a sharp scalpel, a steady 
hand and patience. It is best performed on alcoholic specimens, 
and the magnified drawing, under camera, of the gland from the 
thorax (see Fig. 3), it will be understood is somewhat shrunken 
on that account. 
Running the scalpel from the base of one mandible back across 
close to the neck and forward to the other mandible, turn forward 
and pin, remove the brain and salivary glands; cut the cesophagus 
as far forward as possible, turn it back, and if all has been done 
carefully, one sees coming from the thorax the spiral ducts of two 
glands, which will be found, on following back, lying one on each 
Fic, 2,—Fragment of glands of head much magnified. 
side of the cesophagus, in the space between the muscles of the 
wings. I have given one of these, Fig. 3, magnified thirty-five 
diameters, as drawn under the camera. It could be but little 
more than outlined, as it was a dense mass of coiled and twisted 
glands, the true structure of which is shown (Fig. 4) still more 
magnified. 
At the base, the duct enlarges, as is seen, into quite a reservoir. 
The ducts unite within the neck, or- just as they enter the head, 
and following the floor of the latter, are joined by a pair coming 
in right and left (Fig. 1, c). Following up one of these side. 
glands, we find it dividing into three main branches, ultimately 
terminating in glands, the structure of which is shown in Fig. 2 
much enlarged. It will be seen that the glands from the thorax 
bear a striking resemblance to the Malpighian tubules of insects, 4 
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