Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Report on the International Cloud Observations. Prepared under direction of Willis L. Moore, Chief of Weather Bureau, by Frank H. Bigelow, Professor of Meteorology. US Department of Agriculture, Weather Bureau. Report of the Chief of the Weather Bureau for 1898-99. Vol. II. 4to. Washington, DC 1900. Pp. 787. Charts 79.