Lovering and Bond on Magnetic Observations at Cambridge. 83 
TABLE IIL. 
June. August. September. October. 
Com-| Ob- | Differ-| Com- | Ob- | Differ-| Com- ) Ob- | Ditler|Com= | Ob. Differ- 
puted. | served.| ence. | puted. | served.| ence. puted. | served.| ence. puted. | served-| ence, 
X— 0)102.57 |102.67 
20 102.93 |103.01L 
40)103.24 |103.15 
XI— 0)103.42 |103.35 
20/103.65 |103 54 
40) 103.73 |103.72 
| 
a 
S 
118.00 |118.01 | — -01)103.95 |105.52 | —1.57| 97.37] 97 04 + .33 
-08 118.27 |118.45 | — .16|104.05 |107.54 | —3.49| 97.86 98.41} — .55 
09 118.51 |118.95 | — .44)104.16 |107.16 | —3.00| 98.34 100.36 | —2.02 
.07 118.72 |119.22 -50/104.29 |105.45 | —1.16) 98.80 |100.18| —1.38 
-11,118.92 |119.43 51)104.46 | 106.36 | —1.90| 99.23] 99 99|— 0g 
OL 119.11 |119.47 ~56/P02.66/103.81 ++ .85) 99.63} 99.78] — 15 
bi + +++ +1 
XII— 0103.72 |103 61 -11119.30 }119.09 | 4+ .21/104.89 |101.39 -+3.50) 99.98] 98 94 +1.04 
20/ 103.63 |103.85 .22)119.49 |119.46) + .03/105.14 |100.59 +4.59/100.36 | 98.72] 4.1.64 
40) 103.49 |103.71 .22/ 119.69 |119.23 | + .46}105.38 |101.28 +4.10 100.55 |101.87 | —1.32 
XII— 0)103.26 |103 34} — .08/119.90 119.18 + .72)105.59 |104 16 | 4-1 43 100.76 |100 62] 4+. .14 
20/103.16 |103.45 | — -29/120.13 |119.35 | 4.75] 105.74 /106.31 | — -57/100.92 |101.23] — 31 
40) 103.03 |103.12 | — .09 120.37 |120.15 ++ .22}105.83 |107.54 | —1.71) 99.04 }101.36| —2.32 
XIV— 0)102.97 |102 90 .07/120.62 }120.27 | 4+. .35/105.83/111.59 —5.76101.11 100.11 | +1 00 
20) 102.99 }102 58 41) 120.88 119,98 | 4+. .90/105 75 | 108.57 | —2.82 101.13 100 15 +0.98 
-34)105.57 106.07 | — .50/101.12 101.57) — 45 
-84/105.33 |104.98]4- .35 101.06 |101.97| — 21 
56 121.64 |12. 59 105 02 | 104.23] + .79 1010.98] 100.85 + .13 
61 121.85 | 122.24 .89/ 104.69 | 102 99 | +1 70,100.86 |101 76] — .90 
.20 122.08 | 123.18 | —1.15}104.35 |103.68 + .67100 72 |103.37| —2.65 ) 
39 122.18 |123.29 | —1.11)104.04 |104 13] — .09'100.54| 98 93 +2.31 
89,122.29 | 122.94 | — .65/103.77 |103.78 | — .01/100.34| 98.82 +1.52 
21 122.35 122.69 | — .34]103.56} 99.78 +3 78 100.12]100.80|— .68 
-10)122.38 | 122 67 | — .25]103.42|104.46 | —1.04| 99 871100.89 —1.02 
»35) 122.39 |121.90 | 4+. .45/ 103.35 | 102.52 + .83; 99.62/100.24| — .62 
-41)122.36 |121.25 | 4.1.11]103 35 |103.96} — .61| 99.36 98.05 | +1.31 
-23/122.33 120.95 | 4.1.38|103 40 1105.33 —1.93) 99.10} 98.53 + .57 
+39) 122:30 |121.74 + .56/103 48}102.52)4 .96' 98 84] 99.93|— .39 
XIX— 0106.55 |106.48 .07/122 29 |121.90 + .39/103 57|105.22 | 1.65) 9860] 98.51 +- .09 
20) 106.38 | 106.45 07/122 30 |122.62 | — .32]103 65 1104.16 | — 51) 98.38] 98.93 |— .55 
40 106.24} 106 34 -10)122.36 |121.50 | 4+ .86/103.70 | 104.60 | — 90, 98.20} 99.45 | —1.25 
+ 
81 121.14 |121.48 
.09 121.40 122.94 
40)103.12 |102.31 
XV— 0103.36 |103.27 
20/103.72 |104 28 
40) 104.11 |104.72 
XVI— 0/104.58 !104.78 
20) 105.07 |105.46 
40)105.55 |105.94 
XVII— 0)105.97 |105.76 
20)106.31 |106 21 
40,106.55 |106.20 
XVIII— 0/106 69 |106 28 
20 106.72 |106 49 
40 106.66 |106.27 
| i+ +++ 
[se] 
[i+ +4++ 44+ 111 
XX— 0/106.05 /106 95 | — .90)122 46 | 122.35 11/103 71 | 105 72) —9.01| 9807} 98.81} — .74 
20,106.15 |106 78 63) 122.63 |123.61 98)103 67 |104.39)| — .72 9799] 97.78 + .21 
40) 106.23 |106.68 | — .45) 122.86 |123.72 .86/103 58|102.40 | 41.18] 97.98] 97.51 + A7 
XXI— 0/106.46 107.03 -57)123 14 |123.86 | — .72)103.45 1101.92 -+1.53) 98 03} 95.76] +2.97 
| 
20,106.79 |106.84 ui .05)123 48 |123 78 -30/ 103.28 |104 65 | —1.37) 98.14 96.98 | +-1.16 
40,107.24 |107.20 | + .04/123.87 |123.90 | — (03/103.12/103 81 __ 69) 98.33] 98.74]— .41 
XXII— 0)107.77 107.16) 4+ .61)124.28 |124.47] — .19/102.95 |101.47 +1:48) 98.58] 9954/— .96 
20)108.46 107.68 | -- .78)124.70 |124.77| — .07|102.79| 9950 +3.29) 98.89] 99.74] — .95 | 
40/109.06 108.32} + .74/125.12 |124 60 + .52)102.66 100.80 | -+-1.86 99.24 |100.20 | — 96 | 
XXII— 0/109.53 |109.02 | + .51)/125 50 |124.61} 4+ .89/102.56 104.86 —2.30) 99.62/100.53| — .91 | 
20/110.20 109 55 | + .65)125-82 |126.11 | — .29/102 48 1107.79 —5.31 100.00 |100 50|— .50} 
40/110.37 | 109.86 | 4 .51/126.07 |126.56 | — .49|1012,4 |103.32' — .91 100.39 99.42) + .97 | 
XXIV— 0/110.58 110 SL) 4+ .27)126 22 |126.18] 4+ 04/102 34 |103.35 —1.01 100.74} 99.71 +1.03 | 
20)110.63 110.53 | + 10,126.25 |126.08} + .17/102 24 |102.46 — -22101.04| 99.80 | 41.24 | 
40)110.50 110.19 .31]126.15 |125.70 | + .45/102 10 |100.72 1.38; 101.28 |100 94 | + .34 | 
