About 24,000 Poles have been placed in a very wide range of industries. The numbers in the principal industries are as follows: Building and civil engineering, 4,432; Agriculture, 3,730; Underground coalmining, 3,316, of whom at 9th July, 2,388 had completed training and 1,668 had started work; Brick and tile making, 1,021. Smaller numbers have been placed in some 50 or more other industries.