16. Who were the Bruces, and how did they start in business?
17. What did the Bruces do in 1814 and 1815?
18. How did the Bruces become type founders?
19. What improvement did the Bruces attempt in 1822, and with what result?
20. What was W. M. Johnson’s invention, and what became of it?
21. What development took place in the type founding business, and what was the result?
22. Who was Augustus Ladew, and what did he do?
23. Who was Louis Pelouze, and what did he do?
24. What can you tell about the Boston Type Foundry?
25. Tell about the work of J. W. Phinney.