and 5 feet above. In February, 1861, the river was 15 days between 5 and 10 feet above low water, and 13 days between 10 and 15 feetabove low water, and so on for each month in each year.

and 5 feet above. In February, 1861, the river was 15 days between 5 and 10 feet above low water, and 13 days between 10 and 15 feetabove low water, and so on for each month in each year.

For convenience of comprehending and comparing the stages of the river for the same month in all the years observed, Table B is constructed from Table A. The heights are given in the left-hand column as in A, the years at the heads of the columns, and the number of days in the body of the table. The monthly averages of numbers of days are in the right-hand column. From this we see, for example, that although in January in 1861 and in 1865 the river was within 5 feet of low water all the month, there were 6 years out of 16 that it did not fall as low as 5 feet above low water; that on the average it was but 9 days when the river was between 0 and 5 feet; that in these years the river was more than 20 feet above low water in January, and only 3 of them where it was above 15 feet, and so on.

TABLE B.-SAINT LOUIS.

January.