@book {488741,
	title = {Sundials and Time Finding Instruments: Altitude and Azimuth Dials, Astronomical Compendia, and Nocturnals. Historic Scientific Instruments of the Adler Planetarium, vol. 4},
	year = {In Preparation},
	publisher = {Adler Planetarium},
	organization = {Adler Planetarium},
	address = {Chicago},
	author = {Sara J. Schechner}
}
