BIEDRZYCKI Stefan - Works of the Department of Agricultural Engineering of the Warsaw University of Life Sciences in the period 1922-1925, Warsaw 1926.

Works of the Department of Agricultural Engineering of the Warsaw Agricultural University in the period 1922 - 1925, made under the direction of Stefan Biedrzycki, supplement to "Yearbooks of Agricultural and Forestry Sciences", vol. XVI, Warsaw 1926, f. 16.5 x 24.5cm, pp. 397, [2].

In the text, among others: "Study of the Turbo seeder", "Study of the Cegielski seeder", 'Study of the steam threshing machine".

tattered edges of original publisher's booklet cover, minor tears near spine, minor soiling of cover, otherwise center in more than good condition, uncut piece