[132] Clinical Surgery in India (1866), p. 143.
[133] Mr. John Wood, Path. Soc. Trans., vol. xi. p. 20.
[134] South's Chelius, vol. ii. p. 400; and case recorded by Spence, in Ed. Med. Journal, for August 1862.
[135] Med. Chir. Transactions of London, 1872.
[136] British Med. Journal (Nos. 643, 644), 1873.
[137] Gross's Surgery, 6th ed., vol. ii. p. 342.
[138] Guy's Hospital Reports for 1858.
[139] Both in Guy's Hospital Reports, second series, vol. ii.
[140] Edinburgh Medical Journal for June 1866.
[141] Description of Sir Spencer Wells's Trocar.—"It consists of a hollow cylinder six inches long, and half an inch in diameter, within which another cylinder fitting it tightly plays. The inner one is cut off at its extremity, somewhat in the form of a pen, and is sharp. The sharp end is kept retracted within the outer cylinder by a spiral spring in the handle at the other end, but can be protruded by pressing on this handle when required for use. When thus protruded it is plunged into the cyst up to its middle; the pressure on the handle is taken off, and the cutting edge is retracted within its sheath. The fluid rushes into the tube, and escapes by an aperture in the side, to which an india-rubber tube is attached, the end of which drops into a bucket under the table. The instrument is furnished at its middle with two semicircular bars, carrying each four or five long curved teeth like a vulsellum. These teeth lie in contact with the outer surface of the cylinder, but can be raised from it by pressing two handles. When the cyst begins to be flaccid by the escape of the fluid, these side vulsellums are raised, and the adjoining part of the cyst is drawn up under the teeth, where it is firmly caught and compressed against the side of the tube."