worsening of the child's
condition, by feverishness, by heaviness of the head, or any sign of
disturbance of the brain, the attempt to cure the rash must at once be
abandoned. At the same time I must add that such occurrences are very
rare, and that for one case where I have had to regret my success in
curing the rash, I have seen fifty in which I have been mortified by the
failure of my endeavour.

FOOTNOTES:

[8] The directions given by the distinguished chemist, Dr. Frankland, to
whom I am indebted for the suggestion, are as follows: 'One-third of a
pint of new milk is allowed to stand until the cream has settled; the
latter is removed, and to the blue milk thus obtained about a square
inch of rennet is to be added, and the milk vessel placed in warm
water.' (I may add that the artificial rennet sold by most chemists may
be substituted for the other.) 'In about five minutes the rennet, which
may again be repeatedly used, being removed, the whey is carefully
poured off, and immediately heated to boiling to prevent its becoming
sour. A further quantity of curd separates, and must be removed by
straining through calico. In one quarter of a pint of this hot whey is
to be dissolved three-eighths of an ounce of milk sugar, and this
solution, along with the cream removed from the one-third of a pint of
milk, must be added to half a pint of new milk. This will constitute the
food for an infant of from five to eight months old for twelve hours;
or, more correctly speaking, it will be one-half of the quantity
required for twenty-four hours. It is absolutely necessary that a fresh
quantity should be prepared every twelve hours; and it is scarcely
necessary to add that the strictest cleanliness in all the vessels used
is indispensable.'

[9] In our tables of mortality we find teething registered as having
occasioned the death of nearly 5 (4.8) per cent. of all children who
died in London under one year old; and of 7.3 per cent. of those who
died between the age of twelve months and three years.

PART III.

_ON THE DISORDERS AND DISEASES INCIDENT TO ALL PERIODS OF CHILDHOOD._

The ailments hitherto noticed are by no means all that may occur during
infancy and early childhood, but those only which either happen then
exclusively, or at least with far greater frequency than at other times.

It will be most convenient to consider the others under the different
systems to which they belong, as diseases of the head, of