_Frequency of Attacks._--Only a general average of the number of attacks can be made; and in the present series the following gives an idea of the frequency of seizures in different individuals. Average of one or more attacks per day in 8.8 per cent. Average of one or more attacks per week in 31.1 per cent. Average of one or more attacks per month in 32.2 per cent. Average of one or more attacks per year in 15.5 per cent. At longer or more irregular intervals in 12.2 per cent. This roughly indicates that, in the majority of cases, attacks of epilepsia gravior occur one or more times weekly or monthly. Under the last series, of attacks taking place at longer and more irregular intervals than a year, are included those cases where a few only have occurred during the lifetime of the patients. _Regularity of Attacks._--Many epileptics are attacked at regular intervals, sometimes on the same day or even hour; while others are afflicted at any time, day or night. The following indicate the proportion:-- Attacks occur at regular intervals in 21.1 per cent. Attacks occur at irregular intervals in 78.8 per cent. _Time of Attack._--The following particulars alone could be definitely ascertained:-- Attacks only during sleep in 8.8 per cent. Attacks only during day while awake in 8.8 per cent. Attacks only during early morning in 15.5 per cent. Attacks at no particular time in 55.4 per cent. The chief feature of this observation is that in 15.5 per cent. of cases of E. Gravior the attacks always took place immediately after the patients had wakened in the morning, and this is probably due to the sudden alteration of the cerebral circulation from the sleeping to the wakeful state. _Symptoms immediately after the Attack._--The moment the attack is over sometimes the patient is in his usual condition, and feels no ill effects from the paroxysm. More commonly, however, he suffers from various symptoms, the chief of which, and their relative frequency, is as follows:-- Return to usual condition in 12.2 per cent. Drowsy in 66.6 per cent. Confused in 14.4 per cent. Stupid in 13.3 per cent. Irritable in 14.4 per cent. Excitable in 3.3 per cent. Vertigo in 13.3 per cent. Headache in 41.1 per cent. The above conditions may last from an hour to several days. _Present condition, or state between the Attacks._--It is impossible to enter minutely into the actual physical and mental health of all the epileptic cases under notice, but the following statement gives a sketch of some of the more important conditions associated with the disease, and the frequency with which they occur. In the inter-paroxysmal state the condition of the patients were--