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Show 364 MR. J. BLAND SUTTON ON DISEASES IN [Apr. 19, 1. On some Specimens of Disease from Mammals in the Society's Gardens. By J. B L A N D SUTTON, F.R.C.S., Erasmus Wilson Lecturer on Pathology, Hoyal College of Surgeons of England. [Received February 25, 1887.] In this communication I again venture to bring under notice a few specimens of diseases obtained from mammals which have died in the Society's collection during the past twelve months. Those only have been selected which appeared to m e to possess a zoological as well as a pathological interest. O n several occasions I have drawn attention to the frequency of rickets in mammals living in confinement in this country, and have described some of the peculiar effects due to this disease manifested by the skeleton. Let m e now describe two additional specimens. W h e n the skeleton is thoroughly softened by rickets, the ribs are Fig. 1. Transverse section of the thorax of a rickety Monkey. H. Heart. L, L. Lungs. T. Trachea. CE. (Esophagus. A. Aorta. P. Pericardium. as yielding as though composed of whalebone. In consequence of this they yield to the pressure of the atmosphere and encroach upon the thoracic cavity, displace the heart, flatten the lungs, and disturb the viscera of the chest generally. In m y drawing (fig. 1) a transverse section of the thorax of a Monkey severely affected by rickets is shown. In this drawing the lungs are seen as two narrow bands, the trachea is displaced to the right side, the oesophagus is compressed against the spine, and the heart is pushed forwards, and is in contact with the thoracic parietes all round, instead of hanging almost free in the |