_Nervousness._--Children of neurotic parents, particularly where they are reared in cities, are exceedingly prone to nervousness in one form or another. The condition is undoubtedly often due to heredity, but may be induced in otherwise healthy children by unhygienic surroundings and improper food. Infants exhibiting symptoms that indicate trouble of this kind should not be played with, and every care should be exercised to so direct their lives that the trouble may be gradually overcome. In all cases where nervousness persists an intelligent physician should be consulted. _Vaccination._--The only safe method that we possess of preventing small-pox is by means of vaccination. Its great value has been so thoroughly tested that the writer does not deem it necessary to go into a discussion as to its merits. A child should be vaccinated in at least three places during its early infancy,--there being no danger in doing the operation immediately after birth. Persons ignorant of aseptic surgery should not do this operation, but should always call in the services of some person prepared to do the work in a cleanly manner. Either the leg or the arm may be selected; and children should be revaccinated whenever small-pox breaks out in the community. _Kissing Babies to be Avoided._--Kissing infants in the mouth is a very bad practice, as in this way disease may be quite innocently conveyed to them. The public should be taught to understand that it is not infrequently the case that bacteria may be present in the mouths of individuals who are quite immune to their ill effects, and who are, therefore, perfectly well, but who may, by conveying them to others, particularly children, induce in them serious disease. When caressed in this way at all children should be kissed upon their necks or feet, and never in their mouths or on their hands.