Tradition and transition : extension education for the farm unit in a changing society : a study of all agricultural extension services in Alberta with new directions charted to 1980
A system of natural philosophy : in which the principles of mechanics, hydrostatics, hydraulics, pneumatics, acoustics, optics, astronomy, electricity, magnetism, steam engine, electro-magnetism, electrotype, photography, and daguerrotype, are familiarly explained, and illustrated by more than two hundred and fifty engravings : to which are added, questions for the examination of pupils : designed for the use of schools and academies