TABLE 9.-Number and sex of teachers-Percentage of male teachers.

TABLE 10.-Teachers' wages-Number of schoolhouses-Value of school property-Private

Year.

Average salaries.-In computing (for Table 10) the average monthly wages of all the male (or female) teachers in the several groups of States the average wages of each of the States in question is multiplied by the corresponding number of teachers. The sum of the resulting products is then divided by the sum of the teachers, and the quotient is the average wages of all. Each rate of wages thus receives its due weight.

To illustrate: If 48 teachers receive an average of $72.20 per month, they all receive in a month $3,466; if 473 other teachers receive an average of $48.60 per month, these together receive in a month $22,988; the 521 teachers combined, therefore, receive per month $26,454, or an average of $50.77.

Attention is called to this subject for the reason that the practice of taking the arithmetical mean of a number of rates of wages (the mean is $60.40 in the above case) in order to get the average of all is so common as to vitiate, to a considerable extent, the published statistics of average wages.

TABLE 11.-(1) Length of school term. (2) The aggregate number of days' schooling given compared with the school population.

1870-71 1871-72

1872-73

1873-74

132.1 152.0
133.4 151.9
129.1 154.6
128.8 154.8

1874-75

130.4 158.7

1875-76

1876-77

1877-78

1878-79

1879-80

1880-81

1881-82

1882-83

1883-84

1884-85

1885-86

1886-87

1887-88

1888-89

1889-90

1890-91

97.4 91.6 133.9 119.2 48.7
103.4 97.7 136.1 121.8
97.4 89.1 129.6 118.3
95.6 81.1 132.6 119.0
95.2 81.0 134.6 132.5
133.1 158.0 95.6 82.5 139.1 130.3
132.1 157.2 91.4 80.3 139.8 130.1
132.0 157.6 89.7 86.7 140.1 129.9
130.2 160.1 88.6
81.9 136.4 132.0
130.3 159.2 92.4 79.2 139.8 129.2
130.1 158.7 92.4 82.1 138.8 133.8 52.0 72.2 28.5
131.2 160.6 95.9
82.5 137.1 136.2
129.8 161.0 95.9 82.5 137.1 132.6
129.1 156.0 95.6
85.9 138.6 133.8 55.5 72.5 32.7
130.7 163.1 93.4
87.5 139.1 131.8 56.8 77.2 33.7
130.4 161.6 93.4 86.9 140.4 130.8 57.3 76.7
33.7 32.0 68.7
131.3 165.9 95.3 87.5 139.5 131.6 57.7 77.8 34.8 32.1 68.7
132.3 164.4 95.7 87.6 144.0 130.7 58.7 76.8 35.5 33.6 71.3
133.7 164.1 95.0 88.9 147.5 135.7 58.9 76.7 35.4 34.0 71.6
134.7 166.6 99.9 88.2 148.0 135.0 59.2 76.8 37.3 33.9
145.8 136.9 60.7 78.1 38.1 35.8 73.2
146.8 139.1 61.5 78.3 38.2 37.7 73.6
146.6 138.8 62.3 78.7 39.2 37.5
97.5 150.2 137.1 65.9 82.2 42.4 41.3
92.8 150.8 142.4
92.2 151.9 142.0
142.0 173.3 110.9 96.3 152.8 148.6
143.0 174.3 113.8 97.4 152.8 151.7
143.0 174.0 112.3 98.4 154.5
144.3 177.5 112.1 99.8 155.9 141.5
144.2 177.2 112.1 96.4 157.5 143.0
145.0 177.3 115.8 100.6 156.5 143.9 71.6

a Subject to correction.

Western Division.