We call the attention of our readers to the fact that two of these great annual meetings convene in October, and we trust that but few obstacles will be deemed so weighty as to interfere with their attendance. * * * * * THE demand for Our Temperance Concert Exercise, issued in the May MISSIONARY, and also in circular form, has been steady and encouraging. It was recently used in the First Church, Greenwich, Conn., with gratifying success. Some features were introduced by the pastor, Rev. Mr. Kellogg, not contemplated in the preparation of the exercise. Selections were made from the communications on temperance published in the same number of the MISSIONARY, and read by different individuals. Words were adapted to Jubilee Songs, giving a pleasing variety, and recitations introduced in addition to, and in place of, those given in the paper. We again call the attention of our friends to this Concert Exercise, with reference to its use. * * * * * REV. STEPHEN R. RIGGS, D.D., LL. D., missionary to the American Indians for forty years, died at the age of 71, at Beloit, Wis., in August. Like Livingstone, in early life, he was desirous of becoming a missionary to China, but yielded to what he considered the overrulings of Providence, and in 1837, with his wife, went into the far Northwest among the Sioux. He reduced their language to writing, compiled a dictionary and translated the Holy Scriptures and hymns. Ten well-ordered churches and many out-stations were established in the region of his operations, reaching beyond the British line. As an author, he did good service. His book, “_Mary and I—Forty Years with the Sioux_,” has magnified the significance of Indian missions. Another book, “_Gospel Among the Dakotas_,” portrays vividly scenes of pioneer life. His memorial of Dr. Williamson is a tribute worthy of the man and his successful efforts in behalf of the Indians. Four of his children have labored among the Sioux, and one of his daughters has entered upon work across the Pacific. Rev. Alfred L. Riggs, principal of our school at Santee, and Thomas L. Riggs, of Fort Sally, and Mrs. Martha Riggs Morris, at the Sisseton agency, are carrying on the work so happily inaugurated by their father. His life was one of incessant missionary toil, in which for years he had been aided by his children, and to whom he bequeathed its continuance, and in the midst of whom he passed from earth to his reward on high. * * * * * OUR INDIAN WORK.