. The bee-keeper's guide; or, Manual of the apiary. Bees. OR, MANUAL OF THB APIARY. 139 secretion from them is acid, would rather argue that they, like the racemose glands, were also digestive in their function. I would suggest that we call the thoracic glands, the glands of Ramdohr; the racemose glands of the head, the glands of Meckel, and the other glands of the head-glands of Siebold, in compliment to the excellent work which has been done in their study and elucidation ; while the glands at the base of the mandibles may well be called, from their discoverer, Wolff's glands. In studying th
. The bee-keeper's guide; or, Manual of the apiary. Bees. OR, MANUAL OF THB APIARY. 139 secretion from them is acid, would rather argue that they, like the racemose glands, were also digestive in their function. I would suggest that we call the thoracic glands, the glands of Ramdohr; the racemose glands of the head, the glands of Meckel, and the other glands of the head-glands of Siebold, in compliment to the excellent work which has been done in their study and elucidation ; while the glands at the base of the mandibles may well be called, from their discoverer, Wolff's glands. In studying the digestive organism we are greatly Fig. Jaw of 'Worker showing Wolff ^s gland, after Wolff. J/"Muscles. /Jaws. (? Gland. indebted to Schiemenz and Schonfeld, who have not only ex- plained by use of beautiful illustrations the detailed anatomy of the alimentary canal, but have been equally happy in describing the wonderful physiology of digestion in bees. Schonfeld, from a very elaborate series of experiments, con- cludes that the theory of Schiemenz and v. Siebold is not cor- rect. He thinks the lower head-glands secrete saliva which moistens the pollen, and aids in digesting it. The fact that it is acid adds force to the theory. They empty on the floor of the mouth just where they should pour out the saliva. As the queen and drones never eat pollen, but are fed by the workers, they do not need these glands. Schonfeld thinks the larval food is digested pollen, and he claims to have found this in the true stomach of nurse-bees. Partially digested pollen he terms chyme, which, just before the drone-larvK are to be. 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 Cook, Albert John, 1842-1916. Chicago, Ill. , George W. York & company
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectbees, bookyear1904
