The All-seeing Eye of God a New Year's Address to the Young Connected with Knox Church, TorontoAlexander Topp1878EN
"Remember Your Leaders" a Sermon Occasioned by the Death of the Rev. Alexander Topp, D.D., of Toronto, Formerly of Elgin, Preached in the Free High Church, Elgin, on Sabbath, October 19, 1879Robert Cowan1879EN
Quantity Separation of Rare Earths by Liquid-liquid Extraction. I, The First Kilogram of Gadolinium OxideBoyd. Weaver1952EN