Cited by De B. Birch, 'The Constitution and Relations of Bone Lamellæ, Lacunæ, and Canaliculi, and some Effects of Trypsin Digestion on Bone', Journal of Physiology 2 (5-6) (1880), pp. 360-446.
Description:

Explanation of Plate XII, figs. 4-7:

'Fig. 4. A lacunar membrane with its canalicular branching processes isolated from periosteal lamellae.

Fig. 5. Two similar lacunar membranes united by their canaliculi. From the periosteal lamellam.

Fig. 6. Shews oblique view of isolated membrane from inner surface of Haversian canal, its surface is pitted. The canalicular membranes are continuous with that of the canal. Three lacunae are shewn joined to each other.

Fig. 7. Some lamellae from a Haversian system of the same bone as fig. 3, but less digested. a. Lacuna and some canaliculi are seen.' (383)

 

Figs. 4-5 in text:

'In those places in which least debris remained, in sheltered corners, lacunar bodies with branching processes were met with, either singly (Pl. XII. Fig. 4), lying at a short distance from de'bris, or the ragged edges of the subperiosteal mass of lamellke, and still connected with them by their processes; or in groups of twos (Fig. 5) and threes, united to each other by a delicate tracery of branching processes, which was however sharply defined.' (375)

 

Fig. 6 in text:

'The canaliculi were found to be continuous with it [tyhe internal lamina of the rib], and where they joined it a little funnel-shaped enlargement occurred, as well as a depression in the membrane itself, the latter being due to the accurate adaptation of the membrane to the subjacent part of the matrix, which, consisting of fibrous bundles regularly arranged, allowed a slight sinking in of the membrane in the intervals, which was intensified wvhere the canaliculi joined it. Owing to this the membrane presented on its free surface a regular pitted appearance, which in oblique view looked wavy, as shewn in Fig. 6.' (379)

 

Fig. 7 in text:

'Careful search was made for elastic fibres in the Haversian systems, but none were found.

In Fig. 7 a portion of the matrix of such a system in a somewhat oblique section shews still a faint lamellation.

A lacuna is distinctly seen, with its canaliculi and short pieces of canaliculi lying in the neighbourhood, which could not be mistaken for elastic fibres from their appearance, which is not so highly refracting, and also by their direction, which is vertical to the plane of the lamellae, whilst those described hold a parallel course to the fibres amongst which they run; therefore bright refracting dots would have been expected, but none were found, and in this section the continuations of the fibres into deeper parts would have been made out.' (381)