Papilla of the hand, treated with acetic acid. Magnified 350 times. - - A. Side view of a papilla of the hand. - a. Cortical layer. - b. Tactile corpuscle. - c. Small nerve of the papilla, with neurolemma. - d. Its two nervous fibers running with spiral coils around the tactile corpuscle. - e. Apparent termination of one of these fibers. - B. A tactile papilla seen from above so as to show its transverse section. - a. Cortical layer. - b. Nerve fiber. - c. Outer layer of the tactile body, with nuclei. - d. Clear interior substance.

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Papilla of the hand, treated with acetic acid. Magnified 350 times. - - A. Side view of a papilla of the hand. - a. Cortical layer. - b. Tactile corpuscle. - c. Small nerve of the papilla, with neurolemma. - d. Its two nervous fibers running with spiral coils around the tactile corpuscle. - e. Apparent termination of one of these fibers. - B. A tactile papilla seen from above so as to show its transverse section. - a. Cortical layer. - b. Nerve fiber. - c. Outer layer of the tactile body, with nuclei. - d. Clear interior substance.