Scientific American Supplement, No. 613, October 1, 1887

Published on October 1, 1887, the 'Scientific American Supplement, No. 613' is a collection of articles from various authors that covers a wide range of scientific topics, including biography, botany, chemistry, and engineering. This edition features notable discussions such as a biographical note on Dr. Morell Mackenzie, the properties of Soudan coffee, and the alkaloids of the kola nut. It reflects the late 19th century's intellectual curiosity and advancements in science and technology, making it a significant resource for understanding the era's scientific discourse.