46. What was the first American attempt to use power in press operation?

47. What sort of power was originally used?

48. Tell about the inventions of Adams, Ruggles, and Gordon.

49. Tell about the invention of Merritt Gally.

50. What were the inventions of Kidder and Harris?

51. What types of high-speed small presses are made?

52. What was the first attempt to build a cylinder press?

53. What was the first American attempt to build a cylinder press?

54. Who invented the first successful cylinder press?

55. Tell the story of Hoe & Co. down to 1845.