CONTENTS.--no. 1. Report on the Michigan forest fires of 1881 by W.O. Bailey. 1882.--no. 2. Memoir on the use of homing pigeons for military purposes by W.E. Birkhimer. 1882.--no. 3. To foretell frost by J. Allen. 1882.--no. 4. The use of the spectroscope in meteorological observations by W. Upton. 1883.--no. 5. Work of the Signal service in the Arctic regions. Prepared under the direction of W.B. Hazen. 1883.--no. 6. Report on wind velocities at the Lake crib and at Chicago by H.A. Hazen. 1883.--no. 7. Variation of rainfall west of the Mississippi River by H.A. Hazen. 1883.--no. 8. The study of meteorology in the higher schools of Germany, Switzerland, and Austria by F. Waldo. 1883.--no. 9. Weather proverbs by H.H.C. Dunwoody. 1883.--no. 10. Report on Lady Franklin Bay expedition of 1883 by E.A. Garlington. 1883.--no. 11. The elements of the heliograph by F.K. Ward. 1883.--no. 12. The special characteristics of tornadoes, with practical directions for the protection of life and property by J.P. Finley. 1884.--no. 13. The relation between northers and magnetic disturbances at Havana, Cuba, by G.E. Curtis. 1885.