Cited by W.H. Gaskell, 'On the Structure, Distribution and Function of the Nerves which innervate the Visceral and Vascular Systems', Journal of Physiology 7 (1) (1886), pp. 1-80.
Description:

Explanation of Plate I:

'All the figures in Pl. I. anid PI. II, with the exception of Fig. 10, were drawn to the same scale under the microscope by means of the camera lucida. The exact size of each nerve fibre can be estimated by comparison with the scale in Pl. II. All the figures in Pl. I. and Figs. 6, 7 in Pl. II. were made from preparations taken from the same large collie dog. Figs. 8, 9 were taken from another dog slightly larger than the collie.' (77)

'Fig. 1. Section of one of the upper rootlets of the spinal accessory nerve. The medullated fibres are imbedded in a connective tissue matrix, coloured of a yellowish tinge in the figure.

Fig. 2. Section of the large fibred part of the spinal accessory nerve. A portion only of the section is drawn in the figure.

Fig. 3. Part of a section through the anterior root of the 1st cervical nerve.

Fig. 4. Section of a rootlet of the hypoglossal nerve. 

Fig. 5. Section of the ganglionated root (A) of the hypoglossal nerve after it has reached the main hypoglossal root (B). The connective tissue matrix is tinged yellow.' (77)

 

Figs. 1-2 in text:

'In Pl. I. Figs. 1, 2, I give an accurate representation of one of the medullary roots and of the large fibred portion of the [spinal accessory] nerve.' (10)

 

Figs. 1 and 5 in text:

'In Pl. I., Fig. 5 I give an accurate representation of a section of this [ganglionated] root [of the hypoglossal] after it has joined the main hypoglossal stem; the close resemblance between its structure and that of the fine-fibre portion of the spinal accessory (Pl. I., Fig. 1) point clearly to its connection with the lateral ganglionated root rather than with posterior roots.' (70)

 

Figs. 2 and 4 in text:

'In Pl. I., Fig. 4, I give a section of one of the roots of the hypoglossal nerve.

The comparison of this figure with the large fibred root of the spinal accessory, PI. I., Fig. 2, or the anterior root of the 1st or other cervical nerve, shows how striking is the difference in size between even the largest fibres of the hypoglossal and those of its neighbouring motor nerves.' (36)

 

Fig. 3 in text:

'In the anterior roots of the cervical nerves we find upon section of osmic preparations nerve fibres of varying sizes, see Pl. I. Fig. 3, most of which are of large calibre, varying from 14.4 µ to 19 µ, or larger. Scattered in among these we find others of smaller size and here and there, not grouped together but isolated among the others, a few fine fibres which are never less than 3.6 µ, the commonest size for these, the smallest fibres to be found in these roots, being from 4.55 µ, to 5.4 µ. Such a description holds good for the anterior roots of the first 9 spinal nerves; the anterior root of the 10th nerve (2nd thoracic) is however markedly different... the anterior root of the 10th nerve differs from that of the 9th nerve (see Figs. 7, 6, Pl. II.) neither in the size nor arrangement of its largest nerve fibres but in the one fact that it contains something new, something which is wanting in the anterior roots of the preceding nerves, viz. bundles of finest medullated nerve fibres [note: 'Reissner (Op. cit.) notices this peculiarity of the anterior roots in the thoracic region, without however giving any explanation of it.'].' (6-7)