ON MAPPING THE SURFACE OP THE MOON. 



293 



No. 



23. 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 



30. 

 31. 



32. 

 33. 

 34. 



35. 



36. 

 37. 

 38. 

 39. 

 40. 



41. 

 42. 



43. 

 44. 

 45. 

 46. 



47. 

 48. 

 49. 



Symbol. 



ic* 1 



IO 4 



IC 5 

 IC 16 

 IC* 7 



IC l8? 



IC 



IC* 



>9 



itf 

 IC 1 



ic 



pi 



P2 

 ,P5 



IC 



p6? 



IC 

 IC 

 IC" 



,erl 

 ,0-2 

 ~f3 



IC" 

 IC 



cr5 



IC 



,rJ 



IC T3 



IC* 1 

 IC* 2 



IC 

 IC 



,X3 



x< 



IC 

 IC 

 IC 



1*1 



,*7 



Description. 



Date of dis- 

 covery. 



IC*. 



Beer and Madler's " Picard A." 



Beer and Madler's " Picard B." 



A small crater nearly N. of I C* ' (Picard) 



A minute crater nearly N. of I C ' (Picard) 



A crater in the interior of I C"' 



A crater on the exterior W. wall of I C 7 ' • 



On the N. extremity of the ridge W. of the 

 E. pass(B.&M.). 



A small crater S. oflC 171 



A small crater E. of I C T 

 of M. Crisium. 



IC P . 



, near E. border 



A small crater N.W. of I C (Picard) .... 



A crater on Schroter's ridge N. of the fork. 



A small crater near the N. part of Schro- 

 ter's forked ridge. 



A small crater W. of IC p5 



IC* 



A ring on the W. part of the surface 

 A small crater N. of Prom. Agarum 



Aug. 8, 1865. 

 Oct. 7, 1865. 



Oct. 5, 1865. 



al 



A small crater S.E. of I C 



A small crater between I C 2 and I C 3 - 

 A small crater E. of IC " 4 



IC T . 



A small crater near the W. border of the 

 M. Crisium. 



A small crater N. of IC t2 



x. 



IC 



A crater near the N.E. border (F. B. & M.) 

 A smaller crater S.W. of I C x ! (B. & M.). 

 A crater N. oflC* 1 



A small crater S.W. of I C 3 . 



IC*. 

 A ring near the N.W. border (B. & M.). 



A small crater N.W. oflC''' 1 



A small crater between I C* ' and I C* 3 - 



Nov. 4, 1865. 

 Nov. 4, 1865. 



Feb. 28, 1865. 

 Nov. 4, 1865. 

 April 29, 1865. 



April 29, 1865. 



Oct. 7, 1865. 

 April 29, 1865. 

 April 29, 1865. 

 Nov. 4, 1865. 

 Nov. 4, 1865. 



April 29, 1865. 

 Nov. 4, 1865. 



May 3, 1794. 

 May 3, 1794. 



May 3, 1794. 

 May 3, 1794. 



Discoverer. 



In gall. 

 Bird. 

 Schmidt. 

 Knott and Birt 

 Cassini. 



Knott. 

 Knott. 



Dawes. 

 Knott. 

 Dawes. 



Dawes. 



Birt. 



Dawes. 



Dawes. 



Knott. 



Knott. 



Dawes. 

 Knott. 



Schroter. 

 Schroter. 



Schroter. 

 Schroter. 



Note.— Nos. 5, 29, and 35. The symbols of these craters are queried, as the positions 

 of the craters require to be more accurately determined. 



