The Continuous Induced Air Flotation of Highly Stabilized Oil in Water Emulsions. Leo A. Behie, Gurumkonda S. Hanumanth, and William Y. Svrcek. Page 1

The Effects of Short-Term Storage and Elevated Temperatures on the Flocculation Activity of Aqueous Polymer Solutions. R. Gehr and R. Kalluri. Page 23

Treatment of Landfill Leachate by an Anaerobic Filter Part 2: Pilot Studies. J.G. Henry, D. Prasad, J. Scarcello and M. Hilgerdenaar. Page 45

Formation and Removal of Volatile Organics in Surface Water Treatment. P.M. Huck, R. Andrews and L. Gammie. Page 57

Extended Solids Residence Time Decreases Biosludge Disposal Volumes from an Oil Refinery Activated Sludge Plant. R.S. Gurak, W.B. McKillican and A. Uppal. Page 75

Composition chimique des eaux de la Rivière Sainte-Marguerite en période de fonte. M. Lachance, D. Brouard. R. Van Coillie et J.D. Dutil. Page 85

Acute Toxicity of Cadmium, Copper, Mercury and Zinc to Chydorus Sphaericus (Cladocera) from Three Quebec Lakes. Marc Lalande and B. Pinel-Alloul. Page 103

Ultraviolet Disinfection of Secondary Wastewater. Garry Palmateer, Walter G. Cook, G. Elliot Whitby, Jan Maarschalkerweerd, Doug Huber, and Ken Flood. Page 115

Density Wave Measurements in a Rectangular Clarifier. Mark K. Watson, R.R. Hudgins and P.L. Silveston. Page 129

Bacterial Leaching of Heavy Metals From Anaerobically Digested Sewage Sludge. L. Wong and J.G. Henry. Page 151