r " Round Hole "X." &" Round Hole "M." A" Round Hole "Y." 



&' Round Hole "N." \" Round Hole "O." A" Round Hole "I." 



" Round Hole "H." &xf" Oblong Hole "K." ^x|" Oblong Hole"L." 



" Oblong Hole "U." x|' Oblong Hole'T." Jxf" Mesh Wire "W." 



u 



16x16 Mesh Wire"T." 12x12 Mesh Wire"R." 4^x4 J" Mesh Wire"Q." 



FIG. SO. SIEVES AND SCREENS. (Full Size,) 



