_Spasmodic Croup._ I have administered chloroform in seven cases of this complaint. It was recommended in every instance by Dr. Ferguson, and all the cases ended in recovery. The children were from eight months to two years of age; the majority being about a year. I always gave enough chloroform to cause a state of unconsciousness, for which a few minims suffices in a young child, and when the effect passed off, or nearly so, I repeated the dose. I generally gave five or six doses in the course of about half an hour, after which the child would often sleep for two or three hours. In the milder cases it was repeated once a day; but in the more severe cases it was continued, in the above manner, twice a day. I administered it to a patient of Dr. Van Oven, respecting whom Dr. Ferguson had been consulted, for fifteen days, twice every day, excepting the last three days. This child was very ill when the treatment was first commenced, having a severe fit of spasmodic breathing every five minutes. When the chloroform is given during the spasm, it is desirable to give it very cautiously. Mr. W. J. H. Cox read a paper on the treatment of laryngismus stridulus, with chloroform, at the London Medical Society, in 1850. He had entrusted the administration of it to the mother or nurse, and directed it to be given whenever the spasmodic breathing should come on. I am inclined to think that this would be the best way of giving it, if one could be quite sure of the intelligence of the party to whom it was entrusted. _Hooping-Cough._ I have only administered chloroform in two cases of this complaint. It was recommended in both cases by Dr. Ferguson. One of the children was extremely ill of bronchitis, and it died. The other child recovered, but the chloroform was not continued. I am not aware that chloroform has had any fair trial in hooping-cough. It should be given whenever a fit of coughing comes on. _Infantile Convulsions._ I have administered chloroform in two cases of this disease, with the effect of relieving the convulsions, but the children died. They were both extremely ill before the chloroform was administered. One was the patient of Mr. Walter Bryant, and Dr. Seth Thompson was consulted about it. A case has been related by Dr. Simpson of Edinburgh, in which the chloroform was continued for a day or two, and in which the infant recovered.