The above accident is apt to occur to a child who is standing near a building when the slacking of quicklime is going on, and where portions of lime in the form of powder are flying about the air. It would be well not to allow a child to stand about such places, as prevention is always better than cure. _Quicklime_ is sometimes called _caustic-lime_--it well deserves its name, for it is a _burning-lime_, and if proper means be not promptly used, will soon burn away the sight. 294. _If any other foreign substance should enter the eye, what is the best method of removing it_? If there be grit, or sand, or dust, or particle of coal, or gnat, or a hair, or an eye-lash in the eye, it ought to be tenderly removed by a small tightly-folded paper spill, holding down the lower lid with the fore-finger of the left hand the while; and the eye, if inflamed, should be frequently bathed with warm milk and water; but generally as soon as the cause is removed the effect will cease, and after treatment will be unnecessary. If a particle of metal be sticking on the cornea of the eye, as it sometimes does, it will require the skilled hand of a surgeon to remove it. Any foreign substance, however minute, in the eye, is very painful; but a piece of burning lime is excruciating. Shakspeare gives a graphic description of the pain from the presence of any foreign substance, however small, in the eye:-- "Oh heaven!--that there were but a mote in yours, A grain, a dust, a gnat, a wand'ring hair, Any annoyance in that precious sense! Then, feeling what small things are boist'rous there, Your vile intent must needs seem horrible." 295. _What ought to be done in a case of choking_? How often does a hungry little child, if not carefully watched, fill his mouth so full, and swallow lumps of food in such hot haste, as to choke himself-- "With eager feeding, food doth choke the feeder" _Shakespeare._ _Treatment_.-Instantly put your finger into the throat and feel if the substance be within reach; if it be food, force it down, and thus liberate the breathing; should it be a hard substance, endeavour to hook it out; if you cannot reach it, give a good smart blow or two with the flat of the hand on the back; or, as recommended by contributor to the _Lancet_, on the chest, taking care to "seize the little patient, and place him between your knees side ways, and in this or some other manner to _compress the abdomen_ [the belly], otherwise the power of the blow will be lost by the yielding of the abdominal parieties [walls of the belly], and the respiratory effort will not be produced." If that does not have the desired effect, tickle the throat with your finger, so as to ensure immediate vomiting, and the subsequent ejection of the offending substance. 296. _Should my child be bitten by a dog supposed to be mad, what ought to be done_?