. Gleanings in bee culture . Fig. 5.—Tubular muscle, transverse section. Nov. 15, 1911 689. Fig. 6.—a fiber of fascicle muscle: t, trachea. of development. Their structure is similarto the texture of the striate muscles of thevertebrates. One may discern a well-distin-guished longitudinal striation and trans-verse striation not less characteristic. Thelongitudinal striation is due to the greatnumber of fine fibrils, forming a transverse striation owes its origin tothe fact that each fibril is composed ofsheaves of more or less refraction. Pig. 7shows, in a transverse section, the
. Gleanings in bee culture . Fig. 5.—Tubular muscle, transverse section. Nov. 15, 1911 689. Fig. 6.—a fiber of fascicle muscle: t, trachea. of development. Their structure is similarto the texture of the striate muscles of thevertebrates. One may discern a well-distin-guished longitudinal striation and trans-verse striation not less characteristic. Thelongitudinal striation is due to the greatnumber of fine fibrils, forming a transverse striation owes its origin tothe fact that each fibril is composed ofsheaves of more or less refraction. Pig. 7shows, in a transverse section, the few nuclei are scattered rather regu-larly between the fibrils, which are notclearly shown in Fig. 6, but visible in There is no sarcolemm around the fasci-cle, but a multitude of tracheae penetratebetween the fascicles. For example, seeFig. 8, showing a transverse section of thebreast of a drone. Fig. 9 shows a great mag-nifying of these tracheae, whose walls arestrengthened by minute chitinous ^From those tracheal branches emerge a
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectbees, bookyear1874
