P. Rowley:—The letter which you say you sent in June, with one dollar for Wis. Tent, never reached us. Your letter of July 17th was received, and the 25 cts. for Vol. VI, credited in No. 3, present volume. The paper was sent to H. Plackett, and the money for him credited on our book, but was accidentally omitted in REVIEW. The INSTRUCTOR business was also an oversight on our part. We now send you the back numbers of the INSTRUCTOR, Vol. III, and credit the money you then sent, for Vol. IV, commencing January, 1856.