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between cortex and medulla was lost. The surface of the section presented an intermixture of a greyish, semi-transparent, somewhat fibrous tissue, and of opaque yellow roundish masses of cheesy consistence, some of which shewed little calcareous patches. The left capsule was much smaller than the right, but was like it embedded in thick fibrous tissue and adherent to the diaphragm, and, indeed, closely resembled its fellow in all respects, except that it contained a larger proportion of crumbling calcareous matter.

The other abdominal organs were healthy, excepting that the kidneys were much congested and that the mucous membrane of the duodenum was studded with minute patches of injection.

Extending in front of the vertebræ, from the seventh dorsal to the third lumbar, was an abscess confined by fibrous investments, containing about two ounces of somewhat curdy pus. The bodies of the vertebræ covered by the abscess were bare and somewhat rough. The inter-vertebral substance between the last dorsal and first lumbar vertebræ, was separated, on the left side, from the upper surface of the latter vertebra for two-thirds of its depth, but the separation did not extend to the spinal canal. The upper surface of this vertebra was bare and rough, but the bone within seemed to be quite healthy. The spinal canal and cord were normal.

Dr. Cayley compared the nerves of the diseased capsules with those of healthy capsules from two other bodies, and found that the nerves passing to the diseased organs from the semi-lunar ganglion, and especially a branch of the great splanchnic, were at least twice the size of the corresponding nerves of the healthy organs. On microscopical examination of these enlarged nerves, however, after they had been for some time in spirit, the only difference discoverable was an increase in the fibrous investment of the nerve-bundles.

Under the microscope, the greyish semi-transparent substance of the diseased capsules presented a fibrous basis, which was more or less obscured by dark granular matter, with irregular shrunken cells and nuclei. In places there were distinct deposits of small granular cells and nuclei resembling tubercle. The opaque yellow portions consisted in parts of granular and oily débris, and in parts presented the tubular spaces of the cortex filled with dark oily and granular matter.

Sections of skin from the right flank, where a blister had been applied, were also examined by Dr. Cayley under the microscope. The deepest layers of the epidermis were found to be of a rich, dark-brown colour, from the deposit of pigment in the form of little granular

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