'Chemistry of commerce', Harpers
Tags: 1900s; 1906; 1906-1-1; Catalysis; Catalysts; Chemistry; Duncan, Robert Kennedy; Germany; Technical
'The net-making caddis-worm', Harpers
Tags: 1900s; 1906; 1906-1-1; Biology; Caddisflies; Entomology; Hydropsychidae; McCook, Henry C. (Henry Christopher); United States; Zoology
atom, dcmes-xml, json, omeka-xml, rss2
