Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 PROTECTIVE DEVICES 55 are turned back like those of a fishhook, and prevent the sting from being easily withdrawn. When the in- sect is prepared -to sting, one of these spears, having a little longer point than the other, first darts into the flesh, and being fixed by its foremost barb, the other strikes in also, and they alternately penetrate deeper Fio. 46. The sting of the worker bee, and its appendages. (Enlarged, from Glrard.) a, sting ; 6, poison sac; c c, poison glands ; d d, secret

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Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 PROTECTIVE DEVICES 55 are turned back like those of a fishhook, and prevent the sting from being easily withdrawn. When the in- sect is prepared -to sting, one of these spears, having a little longer point than the other, first darts into the flesh, and being fixed by its foremost barb, the other strikes in also, and they alternately penetrate deeper Fio. 46. The sting of the worker bee, and its appendages. (Enlarged, from Glrard.) a, sting ; 6, poison sac; c c, poison glands ; d d, secreting bags. and deeper, till they acquire a firm hold of the flesh with their barbed hooks. Meanwhile, the poison is forced to the end of the spears, by miu-h the same process which carries the venom from the tooth of a viper when it bites.' (GIKAKD.)

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