April 13, 1883. 



KNOWLEDGE 



223 



of streaks issuing from a crater (hereafter to be described), 

 called Tycho, situated, in an inverting telescope, towards 

 the top of the moon. People with keen vision can detect 

 this system of streaks with the naked eye ; when so seen, 

 though, they, of course, seem to radiate from the southern 

 part, or bottom, of the moon. With these preliminary 

 remarks, we may proceed to furnish a key to the map 

 {jiven above. We merely gives the names of the various 

 formations here, reserving any description of them indi- 

 vidually until we come to treat of their aspect in the 

 telescope. Beginning, then, with the chief dark markings 

 or patches : — 



A, Sea of Conflicts. B, Hnmboldl's .Sea. C, Sea of Cold. 

 D, Lake of Death. E, Lake of Dreams. F, the Marsh of a Dream. 

 G, the Sea of Tranqnility. H, the Sea of Serenity. I, the Marsh 

 of Clouds. K, the Marsh of Cormption. L, Sea of Vapour. M, 



Middle Bay. N, Bay of Heat. O, Sea of Sliowers. P.fBay of 



Rainbows. Q, Ocean of Storms. R, Bay of Dew. S,\ Sea o^ 



Clouds. T, Sea of Moisture. V, Sea of Nectar. X, Sea "^ 

 Fertility. Y, Smyth's Sea. Z, the South Sea. 



Ring Planks, Ceaters, Moontain Ranges, Ac. 



1. Promontorium 



Agarum 



2. AUiazen 



3. Kimmart 



4. Picard 



5. Condorcet 

 C. Auzout 



7. Firniicus 

 S. Apollonius 

 9. Napipr 



10. Schubert 



11. Hansen 



12. Cleomedes 



13. Trallcs 



14. Oriani 



15. Plutarch 



16. Seneca 



17. Hahn 



18. Berosus 



19. Bnrckhardt 



20. Geminus 



21. Bernouilli 



22. Gauss 



23. Jlessala 



24. Schumacher 



25. Struve 



26. Mercury 



27. Endymion 



28. Atlas 



29. Hercules 



30. Oersted 



31. Cepheus 



32. Franklin 



33. Berzelius 



34. Hooka 



35. Strabo 



36. Thales 



37. Gartner 

 3?. Democritue 



