Physics
Balfour Stewart's Physics, a school science textbook issued in Toronto by James Campbell in 1875 for pupils and teachers following an elementary course. The 41 pictures are small wood engravings of laboratory apparatus \u2014 bell jars, glass tubes on wooden bases, balance beams on insulating stands, Leyden jars \u2014 drawn in fine parallel hatching with letter labels and cast shadows, useful as compact line motifs or diagram vocabulary.
