158 CONSTABLE, CAD ELL, AND BLACK. which the works were in progress may be inferred from the following : " My dear Sir, I have been in great anxiety through yesterday and to-day as to the cause of a mysterious interruption of the press inter- course with me. Now, it has happened once before that we were at cross purposes, each side supposing itself stopped by the other. As the easiest way, therefore, of creeping out of the mystery. I repeat it to you." Notwithstanding the continual interruptions and the difficulty of dragging the volumes through the press, the cordial and friendly feeling which existed between De Quincey and Mr. Hogg was never interrupted by a single jarring word. Since the fourteen volumes passed into the hands of Messrs. Black, they have added other two volumes, made up of biographies contributed by De Quincey to the "Encyclopaedia Britannica," and a number of papers which remained in Mr. Hogg's hands.
