principal causes explain this difference-the machinists' strike for the nine-hour day and the excessively hot weather about the end of June that caused many factories to close down. In the following table the comparison between 1899, 1900 and 1901 is extended to each of the twelve groups of trades: In the first six groups and in the eleventh the percentage of unemployment at the end of June was larger in 1901 than in 1899, while in the remaining five groups it was smaller. The widest differences are found in groups 2 and 3, the causes of which have just been explained by the closing of several textile factories on account of heat and by the strike of the machinists. The comparison between 1901 and 1900 is altogether to the advantage of the present year in every group excepting public employment and printing. As to continuous idleness throughout the quarter, the comparison favors 1901 in nearly all industries. In the clothing trades, however, the phenomenal small amount of idleness in the second quarter of 1899 is not repeated in 1901. More detailed figures will be found in the following summary tables: |