THE OPTIMISTIC SIDE OF D ANIEL’S nature put in a rare appearance on the evening of Tuesday and convinced Daniel that Isaac’s collapse had been neither swoon nor stroke, but only another of those mad panics that would come over him from time to time and later subside. Daniel was so sure of this that he paid a call on Isaac’s house in St. Martin’s that evening, expecting that Isaac would be there. But he was not. He was in the care of Catherine Barton at the house of the late Roger Comstock.