EDITOR LETTER, p. 5

 S. V. Nemtzev, V. P. Varlamov
Chitin and chitosan production in Russia, p. 7

 Y. Yevdokimov, V. Salyanov, A. ll’ina, V. Varlamov
Chitosan governs the spatial packing DNA molecules, p. 13

 A. Wojtasz-Pająk, P. Ulański
Preliminary studies on the połydispersity of chitosan obtained under heterogeneous conditions, p. 29

 J. Szumilewicz, L. Szosland
Determination of chitin estrification degree, p. 41

L. Szosland, J. Szumilewicz
Effect of reagents and catałyst concentration on the process of chitin esterification and on the reaction product, p. 49

 A. Pawlak, M. Mucha
Kinetics of water sorption and drying in chitosan with different deacetylation degrees, p. 61

M. Kucharska, A. Niekraszewicz, M. Wiśniewska-Wrona, E. Wesołowska, H. Struszczyk
Preparation and estimation of chitosan usable dressing forms, p. 69

 A. Cedro, R. Jachowicz, W. Jamróz
Chitosan as a drug carrier in stomatological formulations, p. 73

 M. Wiśniewska-Wrona, A. Niekraszewicz, H. Struszczyk, K. Guzińska, E. Wesołowska
Elaboration and estimation of polymeric composition containing chitosan useful for treatment and care of animals, p. 83

 S. Mazur, A. Szczeponek, J. Nawrocki
Effectiveness of chitosan applications in the control of some pathogens on cultivated plants, p. 93

 L. B. Orlikowski, C. Skrzypczak
Chitosan induces some plant resistance to formae sp. Fusarium Oxysporum, p. 101

 J. Borkowski, T. Kotlińska, A.Niekraszewicz, H. Struszczyk
Comparision of the effect of chitosan and tytanit on the growth and healthiness of top onion (Allium proliferum) and onion (Allium cepa) in fieid conditions, p. 107

J. Borkowski, J. Robak, J. Sobolewski, A. Niekraszewicz, H. Struszczyk
Effect of chitosan and other treatments on the lettuce cultivated in winter under plastic tunnel or left in the open, p. 113

D. Pięta, A. Pastucha, H. Struszczyk, A. Niekraszewicz
The use of chitosan in controlling bean (Phaseolus Coccineus L.) diseases, p. 119

J. Meler, J. Pluta, P. Ulański, M. Krotkiewski
Fat-binding capacity of non-modified and modified chitosans, p. 129

D. Ciechańska. A. Niekraszewicz, H. Struszczyk K. Guzińska, J. Kazimierczak, E. Wesolowska M. Wiśniewska-Wrona
Utiiisation of chitosan for lifetime prolongation of meat based products, p. 137

M. Mucha, D. Miśkiewicz 
Ultrasonic studies of water resistance of paper impregnated with chitosan blends, p. 143

K. Kula, M. M. Jaworska, E. Guibal
Chitosan – a sorbent for noble metals, p. 155

D. Biniaś, S. Boryniec, W. Biniaś
Dibutyrylchitin fibres formed from ethylene alcohol solutions, p. 161

A. Błasińska, I. Trębska, I. Krucińska, L. Szosland
Preliminary assessment of sorption capabilieties of nonwoven dressing materials, p. 169

M. H. Struszczyk, K. Brzoza
The effect of the preparation method on the physicochemical properties of microcrystalline chitosan (MCCH), p. 179

R. T. Sikorski
Chemical composites of synthetic polymers with analoguesof chitosans, p. 187

B. Kochańska, A. Kędzia, A. Kędzia
The susceptibility to chitosan ascorbate of yeastlike fungi from genus of candida isolated from children with diabetes mellitus, p. 193

B. Kochańska, A. Kędzia, A. Wojtasz-Pająk
The evaluation in vitro susceptibility of Actinobacillus actinomycetemcomitans to chitosan ascorbate, p. 199

E. Wyloń, Z. Modrzejewska, R. Zarzycki, E. Andrzejewska
The effect of chitosan on the process ofwound healing, p. 205

J. Fiema, B. Piskorz-Bińczycka
Chitosan in the aspect of the physiology of fungi. l. The effect of chitosan on the first development stages of Penicillium claviforme, p. 217