000			00517cam a22001571 4500
082			_a628.352 _bELL _cL-23, P19
100	1		_aEllms, Joseph W.
245	0	0	_aWater purification, _cby Joseph W. Ellms.
250			_a1st ed.
260			_aNew York, _bMcGraw-Hill book company, inc.; [etc., etc.] _c1917.
300			_ax, 485 p. incl. front, illus., tables, diagrs. _bplates (part fold.) fold. plan. _c24 cm.
500			_aReferences at end of each chapter.
650		0	_aWater _xPurification.
650		0	_aMCE
942			_cBK
999			_c8309 _d8309