Powers used.

Figs. 7 and 9, Gundlach’s objective, III, ocular III, magn. about 175 diam. All the rest Gundlach’s objective V, ocular III, magn. about 500 diam.

Fig. 1.

Part of alveolus, submaxillary cat, compressed Carmine.

 

m. Nuclei of memb. propr.

 

g. Nuclei of gland cells.

Fig. 2.

Part of alveolus submaxillary cat; membr. propr. torn Carmine.

 

n. Nuclei of membr. prop. either rolled up or seen edgewise.

 

m. Similar nucleus flattened out.

Fig. 3.

Nucleus of membr. propr.

 

a. Viewed edgewise.

 

c. Viewed from surface.

 

b. Viewed in position between both.

Fig. 4.

Group of gland cells with nucleus and portion of membr. propr. resembling a connective tissue corpuscle with processes.

Figs. 5 and 6.

Fragments of membrana propria with nuclei. Cat.

Fig. 7.

Nerve trunk with branches, accompanying a small duct. Carmine. In the main trunk the individual fibrils cannot be distinguished. Aniline blue might have made them distinct.

Fig 8.

Small nerve trunk containing two naked fibrils in sheath. Aniline blue.

Fig. 9.

Single naked nerve fibril found passing on to an alveolus. It seemed to pass on to the capillary figured but a small break, where the fibre might have been torn, or where from the underlying cells it could not be distinguished—allows doubt if the fibre seen along-side of the capillary is the continuation of the fibre. Carmine and aniline blue.

Figs. 10 and 11.

Capillaries with nerve fibrils accompanying the same. Carmine and aniline blue.

TWO DISPUTED POINTS IN THE HISTOLOGY OF THE SUBMAXILLARY GLAND. MEMBRANA PROPRIA—NERVE-ENDINGS (WITH PLATE.)^[1]

The submaxillary gland is of importance not only for its ownsake, but because its anatomical connections and situation aresuch that it can be subjected to physiological experiment, anda number of important results have been reached which I maydiscuss at some future time.

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