- 457 Texe. 
is on the rectum, and they rarely can be made to 
pass the sigmoid flexure of the colon. They may 
be divided into 
Crass 1. Aqueous clysters. 
2. Oily clysters. 
8. Mucilaginous clysters. 
4, Mixed clysters. 
5. Medicated clysters. 
6. Aeriform clysters. 
The first may be either tepid, cold, onsieed water ; 
operating chiefly by the stimulus of mechanical 
distension and temperature. 
The second may be melted butter, washed lard, or 
goose-grease—alone or commingled with tepid 
water. 
The third may be flax-seed tea, starch, arrow- 
root, barley-water, decoction of mallows, slip- 
pery elm-bark, okra, and similar lubricating 
mucilages. 
The fourth may be molasses and water, with olive 
oil or grease— weak mutton broth, soap-suds, or 
a mixture of any of class third with class se- 
cond, 
The fifth are class 3d, with the mucilages dense, or 
diluted, with the addition of Jaudanum, aloes, 
assafetida, infusion of colocynth, castor oi]; or 
sennatea, oil of turpentine suspended in yolk of 
egg and mucilage of gum-arabic, infusion of to- 
bacco, solutions of saline cathartics, rhubarb tea, 
and indeed any other liquid preparation of aca- 
thartic, lime- water, &c. &c. 
Sixth, fumes of tobacco, and other narcotic hatte, 
For administering the first five classes, common 
clyster or injecting pipes, of different. sizes ac- 
cording to the age of the patient, or bladders with 
an injecting pipe tied to the mouth, or caontchouc 
