Both rhubarb, aloes, and indeed other remedies which are nauseous if given as a liquid and are bulky in the form of powder, may very readily be given in extract in the form of very tiny pills. Thus I have constantly ordered the extract of rhubarb, which is nearly twice as strong as the powder, made up into pills scarcely bigger than what children call 'hundreds and thousands' and silver-coated. Ten or a dozen of these go down in a teaspoonful of jelly unknown, and with no expenditure of temper or tears. The citrate of magnesia, or Dinneford's Magnesia, taken effervescing with lemon juice, or when the effervescence has passed off, or the French Limonade Purgative, are almost always very readily taken, and are often very useful in the little febrile attacks, or in the slight feverish rashes to which children are liable in the spring and autumn. Mercurials should have no place among domestic remedies. I do not mean that the doctor need be called in to prescribe each time that they are given, but that the mother should learn from him distinctly with reference to each individual child the circumstances which justify their employment. They stimulate the liver, as well as produce thereby action of the bowels, but they have, especially if often employed, a far-reaching influence on the constitution, and that undoubtedly of a depressing kind: an influence more than made up for when really needed by their other qualities, and especially by their power in doing away with the results of many forms of chronic inflammation. They are 'edged tools,' however, and we know the proverb about those who play with them.[6] Grey powder, blue pill, and calomel are the three forms in one or other of which mercurials are commonly given. Of the three, grey powder is the mildest; but it has the inconvenience of not infrequently causing nausea, or actual sickness. This objection does not apply to blue pill, which can be given either in the tiny pills of which I have already spoken, or else broken down, and given in a little jam, or in a teaspoonful of syrup or treacle. On the whole I prefer calomel in small doses. It has the great advantage of tastelessness, small bulk, and of never causing sickness. Half a grain of calomel may be regarded as equivalent to two grains of grey powder or blue pill. I shall speak afterwards of other medicines, which may in various circumstances be given, to act upon the bowels; but the above include all that are at all fit for common use in the nursery.