482 ZWICKAU. Thus, while the increase due to excess of births over deaths has been unin terrupted and fairly regular, and represents an average yearly growth of 12*1 per 1,000 of the population, there have been considerable variations of increase due to migration, the number of emigrants being in two years in excess of the number of immigrants, while the average yearly increase due to this cause has amounted to only 8*8 per 1,000 of the population. Though it has declined in recent years, the rate of infant mortality in this town is still high. During the five years 1902-6, the deaths of infants under one year old corresponded to a rate of 265 among every 1,000 children born, as againsk 297 in the previous five years, 294 in 1892-6, and 286 in 1887-91. Besides the gas, water and electricity supply, the Municipality of Zwickau owns some 1,450 acres of land, of which one half lies outside the urban area. Much of this land (including 316 acres within the urban area) is let for agricultural purposes, and yielded in 1904 some £2,000 in agricultural rents. Occupations, Wages, and Hours oe Labour. Compared with the coal-mining industry, which furnishes employment for some 12,000 workpeople in Zwickau, all the other local industries seem of minor importance, for, taken together, they employ no more than 8,400 workpeople, including 2,700 women and girlsj These 8,400 workpeople are distributed among 586 factories and workshops, of which only 246 employ power-driven machinery. Among the latter the most important are engaged in steel manufacture, iron founding, machine construction (chiefly for coal-mining purposes)!, the manufacture of miners’ safety lamps, automobiles, britannia- metal ware, porcelain, earthenware, bricks, tiles and window glass, carriages and vans. The number of workpeople engaged in each of these various industries cannot be stated, as no statistical records are kept by the authorities in an accessible form. As might be expected, having regard to the preponderance of coal-mining among the local industries, a large proportion of the organised workers of Zwickau are coal-miners. This is shown by the subjoined table, classifying, according to groups of trades, the membership of the unions affiliated to the Zwickau Trades Council in 1906. Group of Trades. Building Goal-mining... Metalworking and engineering Textile trades Clothing Printing and allied trades Woodworking Food and tobacco trades ... Pottery, earthenware and glass Other trades Total Membership of Trade Unions. 1,059 2,690 1,331 575 117 173 231 229 152 618 7,175 Among a total of 7,175 organised workpeople therefore, 2,690 or 37 per cent, are coal-miners, and this proportion may be taken as being approximately the same as that which the general body of coal-miners bears to the total number of industrial workpeople in the town. Up to the present the efforts of the trade unions to overcome the opposition of local employers towards wages and hours agreements have met with no