The above reasons, coming from such a learned and experienced physician as Sir Charles Locock, are conclusive, and have decided me to comply with his advice, to enlighten a mother on the _treatment_ of some of the more urgent diseases of infants and of children. In a subsequent letter addressed to myself, Sir Charles has given me the names of those _urgent_ diseases, which he considers may be treated by a mother "where a medical man cannot be procured quickly, or not at all." They are Croup: Inflammation of the Lungs; Diptheria; Dysentry; Diarrhoea; Hooping Cough, in its various stages; and Shivering Fit. Sir Charles sums up his letter to me by saying, "Such a book ought to be made as complete as possible, and the objections to medical treatment being so explained as to induce mothers to try to avoid medical men is not so serious as that of leaving them without any guide in those instances where every delay is dangerous, and yet where medical assistance is not to be obtained or not to be had quickly." In addition to the above I shall give you the _treatment_ of Bronchitis, Measles, and Scarlet Fever. Bronchitis is one of the most common diseases incidental to childhood, and, with judicious treatment, is, in the absence of the medical man, readily managed by a sensible mother. Measles is very submissive to treatment. Scarlet Fever, _if it be not malignant_, and, _if it be not complicated with diphtheric-croup_, and if certain rules be strictly followed, is also equally amenable to treatment. I have been fortunate in treating Scarlet Fever, and I therefore think it desirable to enter fully into the _treatment_ of a disease which is looked upon by many parents, and, according to the usual mode of treatment, with just cause, with great consternation and dread. By giving my plan of treatment, fully and simply, and without the slightest reservation, I am fully persuaded, through God's blessing, that I may be the humble means of saving the lives of numbers of children. The diseases that might be treated by a mother, in the absence of a medical man, will form the subject of future Conversations. I think it right to promise that in all the prescriptions for a child I have for the use of a mother given, I have endeavoured to make them as simple as possible, and have, whenever practicable, avoided to recommend powerful drugs. Complicated prescriptions and powerful medicines might, as a rule, to be seldom given; and when they are, should only be administered by a judicious medical man: a child requiring much more care and gentleness in his treatment than an adult: indeed, I often think it would be better to leave a child to nature rather than to give him powerful and large doses of medicines. A remedy--calomel, for instance--has frequently done more mischief than the disease itself; and the misfortune of it is, the mischief from that drug has oftentimes been permanent, while the complaint might, if left alone, have only been temporary.