“…worked as a ringer.”

“Wilhelm Tempel and His 10.8cm Steinheil Telescope,” Simone Bianchi, et. al., Journal of Astronomical History and Heritage, Vol. 13, No. 1, 2010, p. 43.

“…four hundred florins…”

“Wilhelm Tempel and His 10.8cm Steinheil Telescope,” Simone Bianchi, et. al., Journal of Astronomical History and Heritage, Vol. 13, No. 1, 2010, p. 44.

“…a 10.8-cm refractor scope…”

“Wilhelm Tempel and His 10.8cm Steinheil Telescope,” Simone Bianchi, et. al., Journal of Astronomical History and Heritage, Vol. 13, No. 1, 2010, p. 43.

“…on April 2, 1859…”

“Wilhelm Tempel and His 10.8cm Steinheil Telescope,” Simone Bianchi, et. al., Journal of Astronomical History and Heritage, Vol. 13, No. 1, 2010, p. 45.

“…further discoveries…”

“Wilhelm Tempel and His 10.8cm Steinheil Telescope,” Simone Bianchi, et. al., Journal of Astronomical History and Heritage, Vol. 13, No. 1, 2010, pp. 45-46.

“…asteroids, galaxies, the Pleiades…”

“Wilhelm Tempel and His 10.8cm Steinheil Telescope,” Simone Bianchi, et. al., Journal of Astronomical History and Heritage, Vol. 13, No. 1, 2010, pp. 51-52.

“…December 19, 1865…”

“Wilhelm Tempel and His 10.8cm Steinheil Telescope,” Simone Bianchi, et. al., Journal of Astronomical History and Heritage, Vol. 13, No. 1, 2010, p. 44-45.

“…Horace Tuttle…”

“The Tuttles of Harvard College Observatory: 1850-1862,” Richard E. Schmidt, The Antiquarian Astronomer, No. 6, January 2012, p. 74.

“…inner rings of Saturn…”

“The Tuttles of Harvard College Observatory: 1850-1862,” Richard E. Schmidt, The Antiquarian Astronomer, No. 6, January 2012, p. 78.

“…eight years younger…”

See “…Horace Tuttle…,” above.

“…a common laborer…”

“The Tuttles of Harvard College Observatory: 1850-1862,” Richard E. Schmidt, The Antiquarian Astronomer, No. 6, January 2012, p. 84.

“…succeeded his brother…”

“The Tuttles of Harvard College Observatory: 1850-1862,” Richard E. Schmidt, The Antiquarian Astronomer, No. 6, January 2012, p. 84.

“…Jupiter…Vulcan.”

“The Tuttles of Harvard College Observatory: 1850-1862,” Richard E. Schmidt, The Antiquarian Astronomer, No. 6, January 2012, pp. 95-96.

“…more than a dozen comets…”

“The Tuttles of Harvard College Observatory: 1850-1862,” Richard E. Schmidt, The Antiquarian Astronomer, No. 6, January 2012, pp. 85-88.

“…work at the Naval Observatory…”

“The Tuttles of Harvard College Observatory: 1850-1862,” Richard E. Schmidt, The Antiquarian Astronomer, No. 6, January 2012, p. 96.

“…inside the constellation Leo…”

“Observations 0n the Meteors of November 13th, 1833,” Denison Olmstead, American Journal of Science and Arts, 1834, Vol. XXV, p. 366.