Vo/1 
P/aU IV 
Fi o 5 . <Jei f'rorrt 4< T/ead Discs. 
Fi^s, F .Jet 'from. SliuUoxr Water 
5. Compression of 30 Lea d Discs. 
WPM..-n sJijjl. ole / ■ 
Fl ow of Solids. 
Heru.Jd Press luth 
