The neurolemma or primitive sheath presents the appearance of a delicate, structureless membrane.    From Wordnik.com.  [IX. Neurology. 1. Structure of the Nervous System] Reference

The neurolemma or primitive sheath is not interrupted at the nodes, but passes over them as a continuous membrane.    From Wordnik.com.  [IX. Neurology. 1. Structure of the Nervous System] Reference

Each nerve cell has a nucleated sheath which is continuous with the neurolemma of the nerve fiber with which the cell is connected.    From Wordnik.com.  [IX. Neurology. 1. Structure of the Nervous System] Reference

These nuclei are believed to be in connection with a delicate sheath corresponding with the neurolemma of the medullated nerve fiber.    From Wordnik.com.  [IX. Neurology. 1. Structure of the Nervous System] Reference

When the nerve fiber approaches its termination, the medullary sheath suddenly disappears, leaving only the axis-cylinder surrounded by the neurolemma.    From Wordnik.com.  [X. The Organs of the Senses and the Common Integument. 1e. Peripheral Terminations of Nerves of General Sensations] Reference

Each branch receives tubular sheaths from the dura mater and pia mater, the former being lost in the periosteum of the nose, the latter in the neurolemma of the nerve.    From Wordnik.com.  [IX. Neurology. 5a. The Olfactory Nerves] Reference

After a time the fiber loses its neurolemma, and consists only of an axis-cylinder, which can be seen, in preparations stained with chloride of gold, to be made up of fine varicose fibrillæ.    From Wordnik.com.  [X. The Organs of the Senses and the Common Integument. 1e. Peripheral Terminations of Nerves of General Sensations] Reference

The axis-cylinder is the essential part of the nerve fiber, and is always present; the medullary sheath and the neurolemma are occasionally absent, expecially at the origin and termination of the nerve fiber.    From Wordnik.com.  [IX. Neurology. 1. Structure of the Nervous System] Reference

The nerve fiber, on approaching the muscular fiber, suddenly loses its medullary sheath, the neurolemma becomes continuous with the sarcolemma of the muscle, and only the axis-cylinder enters the muscular fiber.    From Wordnik.com.  [IX. Neurology. 1. Structure of the Nervous System] Reference

If the fiber be treated with silver nitrate the reagent penetrates the neurolemma at the nodes, and on exposure to light reduction takes place, giving rise to the appearance of black crosses, Ranvier’s crosses, on the axis-cylinder.    From Wordnik.com.  [IX. Neurology. 1. Structure of the Nervous System] Reference

Small nerve of the papilla, with neurolemma. d.    From Wordnik.com.  [X. The Organs of the Senses and the Common Integument. 1e. Peripheral Terminations of Nerves of General Sensations] Reference