1. Report of comparative tests of roundels from an ophthalmologist's standpoint Author(s): Black, Nelson Miles, author Publication: [Bethlehem, Pa.?] : [publisher not identified], [between 1904 and 1909?] Subject(s): LightingColorRailroads
2. Rules and regulations of the Utah State Board of Health relating to camps Author(s): Utah. State Board of Health, author. Publication: Salt Lake : The F.W. Gardiner Co. Press, [between 1898 and 1910?] Subject(s): Sanitation -- legislation & jurisprudenceCamping -- legislation & jurisprudenceRailroadsConstruction IndustryUtah