I found it not difficult, in the excitement of Mr. Chillip's own brain, under his potations of negus, to divert his attention from this topic to his own affairs, on which, for the next half-hour, he was quite loquacious; giving me to understand, among other pieces of information, that he was then at the Gray's Inn Coffee-house to lay his professional evidence before a Commission of Lunacy, touching the state of mind of a patient who had become deranged from excessive drinking.