Contenu: Matalová, Anna, Mendel's experimental plants decorate the Augustinian library ceiling: 5-8; Orel, Vítezslav-Cunderlík, Igor, What was Mendel's intention in preparing microscopic slides?: 9-14; Procházka, Libor, Mikroskope von Johann Gregor Mendel: 15-27; Vávra, Miloslav, F.M. Klácel (1808-1882) as inspirerer of students in botany: 29-34; Obermajer, Jaroslav, New medals with Gregor Mendel's portrait: 33-36; Nakazawa, Singo, Japanese contribution to the erection of Mendel's marble statue in Brno (1910): 37-39; Portin, Petter-Saura, Anssi, The impact of Mendel's work on the development of genetics in Finland: 41-45; García, Martínez, José, The introduction of mendelism to Spain: 47-48; Matalová, Anna, Events in honour of the 100th anniversary of Mendel's death: 49-56; Bibliography of Folia Mendeliana No. 10-19: 59-61.