. Beekeeping; a discussion of the life of the honeybee and of the production of honey. Bee culture; Honey. 152 Beekeeping dioxid enter the tracheal branches and are expelled through the spiracles. The more complex compounds are eliminated in the process of excretion. The tracheal system of the bee is shown sufficiently in the accompanying il- lustration (Fig. 79) so that a detailed de- scription is unneces- sary. The abdomen contains the unusu- ally large tracheal sacs (TraSc) connected with each other by ventral commissures (TraCom). They are also connected with tracheal sacs of the thorax. F
. Beekeeping; a discussion of the life of the honeybee and of the production of honey. Bee culture; Honey. 152 Beekeeping dioxid enter the tracheal branches and are expelled through the spiracles. The more complex compounds are eliminated in the process of excretion. The tracheal system of the bee is shown sufficiently in the accompanying il- lustration (Fig. 79) so that a detailed de- scription is unneces- sary. The abdomen contains the unusu- ally large tracheal sacs (TraSc) connected with each other by ventral commissures (TraCom). They are also connected with tracheal sacs of the thorax. From the most anterior spiracles of the thorax are heavy trunks to the air sacs of the head, above the brain. The tracheal system of the bee is more elaborate than that of most other insects and prob- ably in no other species is there more free access of oxygen to all parts of the body. The pumping of the air through the body is accomplished by the respiratory movements of the abdomen, consisting of a lengthening and shortening of the abdomen and a slight dorso-ventral movement. The muscles of the abdomen which function. TraConi Fig. 79. — Tracheal system of worker with dorsal sacs and trunks removed, from 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 Phillips, Everett Franklin, 1878-1951. New York, The Macmillan Company; London, Macmillan & Co. , ltd.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeecult, bookyear1915
