356 
THEORY OF THE MOTION OF THE MOON. 
D* BROWN, in the first two parts of his work, has 
explained his methods, The third part contains little 
NAL OGRE 
f AuGusT 7, 1902 
have appeared in NATURE on November 25, 1897, and July 
13, 1899. It will be seen that the high order of accuracy 
to which the computations have been pushed has been main- 
tained, and that most of the latest series of terms are very 
more than tables of results. Our review, therefore, must | small and, with a few exceptions, below the limits of 
be necessarily confined to an extension of the tables that | observation. 
= | 4 8 | 22 rg a aio eal 
z J Ee 2% egy 2 3 E By es 
Biull mates 2 fo) Shs) Secale os Z So, ae eee 
z 3 2 e vis | 2-52 | 2 5 : = os BS 
2 q 5 2 aioe 5g 2 Siallieg 3 3 Fi goo, | Secs 
2 @ & é eee | ane 2 g to 3 ese | wags 
ae ae Sea | | <a SN Gaeee ae 
$s 3) 2 Zo |) Signe Ss 6) 2 ES rec 
2 ee ai SE 
I 1 fo) 13 | 206265 00002 61 hea 7+F+D fe) ol o'2 
2 é Z 18 17000 2 62 10 o'2 o'2 
3 | é ls 21 350 o-4 63 10 o'2 0003 
A ace D 9 so 0 05 64 10 o'5 0°003 
5 h F II g000 oe) 65 8 0'004 0'06 
6 e 2l 21 240 3 66 13 06 32 
7 e ° It 340 3 67 15 06 32 
8 ee’ +l 21 140 4 68 9 0'5 32 
9 ce’ 7-L 22 100 4 69 14 03 5 
10 ee 2t 18 6 06 70 14 o3 5 
II ee fo) 10 2 foe) 71 16 o'4 5 
12 1 aa 2F | 20 400 o4 72 17 O°5 5 
13 id fo) II 400 o4 73 15 o'2 OL, 
14| ea 7+D 19 12 06 74 15 o'r eZ: 
15 ea 7+D 20 14 | o7 5 15 004 7 
16 a? fo) ce) || ool ol 76 14 o2 i 
17 he 1+F TO} 15 0°06 77 9 007 o7 
18 he 1-F a) 45 0°06 78 13 o-2 I 
19 he’ ULE 1o | I ool 79 14 10:03) 50) ey 
20 | ke’ “—-F roe | o"4 ool 80 15 0°05 I 
21 ha F+D 10 | 4 0°02 81 14 0:07 I 
22 3 32 17 Il 27 82 II o'ol o'16 
23 é Z 18 | Il 27 83 II 0°04 o'16 
24 ee’ 2l+/ V7 6 4 84 7 00001 o'02 
25 ere" 2/—1 18 | 3 4 85 13 o's 5 
26 ee" ip 19 8 4 86 14 re7, 50 
27 ee? 7+2/' 16 5 06 87 16 I 50 
28 ee”? J-2.' 15 2 06 88 15 2 50 
29 ee’? Z 17 I 06 89 9 2 5 
30 ee 3V 13 03 ool go 13 or 7 
31 3 iH 16 Or || tort 91 14 ol 7 
32 ek? 1+2F 15 II 4 92 15 0°06 7 
33 eh 7-2F 17 30 4 93 14 o4 7 
34 ek? Z 16 14 o4 94 16 o6 7 
35 Ha ’4+2F 15 2 0°07 95 15 o's 7 
36 ek /)-—2F 16 I o7 96 | 41 0'04 o'r 
37 ek? Le 16 4 o7 97 ) 13 ool I 
38 "a, 2/+D 18 o'8 06 98 13 0106 eet 
39 ea D 7 13 6 99 13 Chey |) 
40 ee'a. (BeeoniDy \h 56) o4 I 100 7 0°03 oO'l 
41 cea. 7-!+D | 16 os I 101 9 0°04 08 
42 ea ZL DOs ||P 75 03 002 102 II o'8 8 
43 | ea D 8 O-4 o-2 103 7 o's | “0° 
44| #a 2F+D | 16 o'5 or 104 as, G06) |i 
45 k'a D 8 3 ol | 105 atop O13 eS |e, 
46 | ea* Ys 16 0°03 ol | 106 12 0705 | 10 
AU weaelcee if 16 0'002 0'02 107 12 02 10 
48 a3 D 8 O'00I | 0°03 108 4 12 o4 10 
49 |-) # 3F 9 I | O72 | 109 | ee’a 2+2/’/+D 10 0°06 14 
Foy || 23 BE 8 o'2 | o2 | 110] ee" f-2U¢+D II 0°03 I°4 
51 he* eye) |) iis) 10 I corinne vee 2+D 12 0706 | 14 
2 he? 21 ips Aye a1O 9 I 112 | e’%a 37+D II ooo | 02 
53 he* F 10 4 I 113 ea “+D 12 0'002 o'2 
54 | hee’ (Eee 10 5 |p woz 114 | esa 7+2F+D 12 0°02 or 
55 hee’ t+ 2—®P Io | 3 |) Vow 115 ek*a | /-2F+D 15 0'02 I 
50] hee’ | 2-/4+F r1 | 2 02 16)| \eé | 7+D 15 o2 I 
57 hee! 7-7 -F rin ‘| 4 o'2 117 eka | /+2F+D roi ool o'2 
58 | ke’? 2/'+F 10 oS 003 «|| 118] eé4a | ’—-2F+D 14 o'ol 02 
59 kel 2l/'—F 10 0-08 O73 119 | e4°a v+D 15 or2 o2 
60 he'* F Io | 04 0°03 Ier2OM tera? | 2d 12 0'002 | 20 
| 
By Ernest W. Brown, M.A,, Sc.D., F.R.S. 
NO. 1710, VOL. 66] 
1 “Theory of the Motion of the Moon ; containing a New Calculation of the Expressions for the Coordinates of the Moon in Terms of the Time.” 
(From the AZemoirs of the Royal Astronomical Society, vol. liii.) 
