1. The effect of growth in stratospheric flight operations

   • B. E. Jocelyn
   • J. F. Leach
   • P. Wardman

   OriginalPaper Pages: 141 - 153

2. Application of nonlinear programming to water quality control

   • James R. Marsden
   • David E. Pingry
   • Andrew Whinston

   OriginalPaper Pages: 155 - 169

3. Effect of pollution on the blood characteristics ofTilapia zillii G.

   • Massodd A. H. Saad
   • A. Ezzat
   • M. B. Shabana

   OriginalPaper Pages: 171 - 179

4. Toxicity of lead nitrate to algae

   • John L. Malanchuk
   • Gerhard K. Gruendling

   OriginalPaper Pages: 181 - 190

5. Techniques for air pollution observation from space

   • George Ohring
   • Joseph Otterman
   • Joachim Joseph

   OriginalPaper Pages: 191 - 217

6. Distribution of foraminifera near pollution sources in Chaleur Bay

   • C. T. Schafer

   OriginalPaper Pages: 219 - 233

7. Experimental study of the effect of oil on some representatives of benthos in the Caspian Sea

   • A. G. Kasymov
   • A. D. Aliev

   OriginalPaper Pages: 235 - 245

8. Book reviews

   • G. Lindner
   • Edward N. Ziegler
   • K. C. Pillai

   BookReview Pages: 247 - 248

9. Announcement

   Announcement Pages: 249 - 249