Research Papers
| Investigations of the barrier perception mechanisms of the blind | |
| Czesław Puzyna | 89-108 |
| Acoustical investigations of the effect of additives on the elastic properties of raw kaolin* | |
| Ewa Ryll-Nardzewska, Jan Ryll-Nardzewski, Andrzej Kulik, Henryk Pieczarowski | 109-116 |
| Diffraction of a high intensity light by ultrasound in nonlinear liquids* | |
| Marek Kosmol, Antoni Śliwiński | 117-130 |
| How the structure of a medium is seen by an acoustic wave* | |
| Ignacy Małecki | 131-140 |
| Emission, absorption and propagation of acoustic THz-Waves in solids* | |
| W. Eisenmenger | 141-156 |
| Acoustics and the properties of materials* | |
| R. W. B. Stephens | 157-168 |
| Certain problems of noise annoyance* | |
| Aurelian Stan | 169-176 |
Chronicle
| Report on the second congress fase - 78 Warsaw, September 18-22, 1978 | |
| E. Ozimek | 177-189 |