49. Periodical prayer. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: C.K. Whipple Publication Place: Boston Date: 1800 Format: Book
50. Penny-wise, pound-foolish. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: C.K. Whipple Publication Place: Boston Date: 1800 Format: Book
51. Origin of slavery and its relations to constitutional law : words for working men, second series. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: s.n. Publication Place: S.l. Date: 1800 Format: Book
52. Narrative of Phebe Ann Jacobs Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: Printed for W. and F.G. Cash Publication Place: London Date: 1800 Format: Book
53. Most horrible and astounding facts, or a revelation of a modern mystery of iniquity. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: J. Barker Publication Place: London? Date: 1800 Format: Book
54. Metropolitan Society for the Monthly Distribution of Religious Tracts. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: W.E. Painter Publication Place: London Date: 1800 Format: Book
55. Maudslay's screw-cutting lathe circa 1800 Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Unknown Date: 1800 Format: Image Agent: unknown
56. Maudslay's screw-cutting lathe circa 1800 Collection: Early 20th Century Engineering Lantern Slides Set: Transfer of skill Location: Unknown Date: 1800 Format: Image Agent: unknown
57. Man's duty to God. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: C.K. Whipple Publication Place: Boston Date: 1800 Format: Book
58. Malem-boo, the Brazilian slave. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: Printed by A. Mann Publication Place: Leeds Date: 1800 Format: Book
59. Love to God. Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: C.K. Whipple Publication Place: Boston Date: 1800 Format: Book
60. "Lost sinners". Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: C.K. Whipple Publication Place: Boston Date: 1800 Format: Book