35 REPORT—1868. 
72, A narrow shallow valley extending from the mountain IV Af ® into 
the depression IV A®®; length 17'°43, breadth between IV Af* and 
TV Af 3 3”-54, breadth in IV Af ® 2-24. This valley appears to be poste- 
rior in date to the depression IV A*“°, or at least to the very low E. wall, 
which has been broken through in the line of valley. 
73. A mountain §.S.W. of IV A®*. Length of crest 8.8.W.—-N.N.E. 
11-19, length of crest on N.W. 531. It is in the line of fault TV Af”. 
74. A mountain-mass lying in a shallow depression between IV Af 7 
and IV A&73, near the line of circumvallation around TV Af? TV A” 8, 
The base of the mountain-mass is of an elliptical form. Longest diameter 
13-42, nearly in a line with the summits of IV A®*6 and IV A®*8; shortest 
diameter at right angles, 8-95. The summit is on the N, of the longest 
diameter. 
75. A mountain-peak on the N. border of IV A* ®, near the line of “ cir- 
cumyallation” around [V Af? TV A”®. 
+76. A small depression at the E. foot of IV A? ™. 
77. A low ridge in ‘continuation of the interior W. wall of TV A#53, co- 
incident with the fault TV A®*!; length 7'-64. 
78(x). A shallow depression E.S.E. of and in continuation of the line of 
cliffs TV Af 4 to IV AF 44, 
The interior of this depression appears as a white spot on Rutherford’s pho- 
togram, 1865, March 6. 1868, May 1¢ 9°45" G. M. T., I observed it with 
the Crossley equatorial of 7:3 inches aperture, and saw it as a round craterlet 
with interior shadow of about -33, diameter of craterlet=1. It was slightly 
larger than IV A*7, and is the eleventh in order on IV A®. On May 24 
7h 45m G, M.T. it exhibited some approximation to the class of “ light-centres ” 
(see Report Brit. Assoc. 1866, p. 218). Ihave also recorded that in 1868, on 
March 31¢ 8" 30" G. M.T., and May 30¢ 10" 20" G. M.T., it was seen as a 
crater with the Royal Astronomical Society’s Sheepshanks Telescope, No. 5, 
79, A cleft from the end N. of IV A’ *# to IV Af7; length 9°79; not 
in Schmidt’s catalogue. 
80. A mountain between IV Af # and IV Af. 
This mountain has a gentle slope towards 8.8.W. ; the N.N.E. side is hol- 
lowed out, and receives the depression TV A*7*. It is 59 of Lohrmann’s 
Sec. I.; he has given it a much bolder character than it possesses (see 
ante, p. 18). 
81, A mountain-range W. of, and in union with, IV A®%, Length of 
crest 10:26, breadth of base at N. end 5-31. 
82. The valley between 1V Af and IV Af §1. Length 6-25. 
*83, A raised and nearly filled ring on the chain from the junction of 
Ptolemeus and Alphonsus towards Sabine and Litter, N.N.W. of IV Af *, 
Length 9°79, aligns with the mountain IVA 4 47 through Horrow; breadth 
7-64. 
This ring is not given either by Lohrmann or by B. and M. _ It is cer- 
tainly distinct on Rutherford’s photogram, but may be overlooked among the 
mountains surrounding it; it is just within the line of circumvallation 
around IV Af? TV A? 3, 
84, An elliptical crater between IV Af & and TV A* “° in the angle formed 
by the junction of TV A? 81 and LV Af *3; length on a line passing through 
the N. angle of Horrox 625, breadth 3-17, mag. 0°28. 
This crater, which is the seventh in order upon IV AF, is not shown by 
B. & M. Lohrmann has four small craters W. of his plain 58, Sec. L., to 
which he alludes in his text ; they are probably the valley IV Af *, the crater 
es a 
