1) The four earliest asteroids to have been discovered were Ceres (1801), Pallas (1802), Juno (1804), and Vesta (1807). You may find them: in the rectangular large Demonstration case on the bottom shelf as part of the French Copernican armillary sphere (1846) and the W & S Jones orrery (1807-45); in the parlor on the reproduction Astronomia flashcards; and (for particularly observant visitors), in the square Self-Education case on the top shelf in Smith's Illustrated Astronomy.

2) There are 3 books by women and 1 book for women. They are: Mary Ward, Telescope Teachings (bottom shelf, rectangular Self-Education case), Sophia Ulliac-Tremadeure, Astronomie et Météorologie (top shelf, square Self-Education case), Margaret Bryan, Lectures (top shelf, as before), and Lalande, Astronomy for Ladies (bottom shelf, as before). There is also a set of conversation cards in the rectangular Fun & Games case created by the Misses Price.

3) This illustration can be found in the rectangular Self-Education case on the bottom shelf; it is in Camille Flammarion, The Lands of the Sky.

4) This book is Samson Arnold Mackey's The Mythological Astronomy of the Ancients. It can be found in the square Self-Education case in one of the bottom corners (look for the small type on the title page).

5) These can be found in the rectangular Fun & Games case: Astronomia and Elements of Astronomy (bottom shelf) and Urania's Mirror (top shelf). Reproductions of selected cards from all three sets are available in the parlor.

6) Taurus = Neptune; you can find this on the French Copernican armillary sphere (1846) on the bottom shelf in the rectangular Demonstration case. Herschel = Uranus. William Herschel discovered Uranus in 1781. You can find this in the parlor in the Astronomia flashcard reproductions. This is kind of a trick question: the set of Astronomia cards is also on display in the rectangular Fun & Games case on the bottom shelf, but the card with Herschel is in the parlor. The particularly observant visitor may have also seen new planets in Smith's Illustrated Astronomy in the square Self-Education case; in addition to Herschel, Smith includes Leverrier (another name for Neptune, and also named after its discoverer).

7) You can find exploration routes on the Robert Sayer world map, hanging on the wall in the Representation section. He traces the three voyages of Captain Cook.

8) Two objects used candles: the Felkl tellurian (rectangular Demonstration case on the bottom shelf) and the astronomical lantern (rectangular Fun & Games case on the top shelf).

9) Gentleman's telescope: This is the walking stick telescope found in the square Fun & Games case on the bottom shelf. (By the way, the telescope model is Adler's very own curator, Dr. Marvin Bolt!)