OF THE EARTH’S MAGNETISM. 553 
TABLE XX XIII.—Continued. 
















































Date. | Maker.|Trevan.| Sing. | Hobar. || Date. | Maker.|Trevan.| Sing. | Hobar. || Date. | Maker.| Trevan.| Sing. | Hobar. 
1845. 1845, 1845, 
July 6) 42-59} 15-66} 25-45 | 40-42 || Sept. 7) 34-64] 11-54) 24-19) 36-97 |) Noy. 9] 42-19) 18-13 | 28-64 | 45-02 
7| 39-43} 14-63] 25-59] 40-34 8} 37-88} 15-04) 25-86] 40-32 10} 43-34} 17-10} 28-08 | 44-31 
8} 40-60} 13-80] 26-42} 40-46 9} 36-74] 14-42} 27-11] 41-16 11] 42-17| 16-79 | 29-05 | 43-82 
9} 37-92] 15-66} 27-12} 40-50 10} 38-97} 16-89} 28-36] 41-82 12} 43-41 | 18-75] 30-03 | 45-64 
10} 38-92} 14-93) 27-53) 40-91 11; 38-76} 14-32} 26-83} 40-21 13) 44-72} 19-36) 30-72] 45-78 
11} 40-59} 17-51] 27-95} 41-59 12} 36-94; 13-70} 26-00} 39.54 14) 44-46} 19-05) 31-28 | 46-27 
Toe. sh Son aa 13) see ah anes eee PS\) ace as ae Sate 
13} 40-27} 15-45} 28-43 | 43-23 14] 36:72} 13-60 | 26-27 | 41-43 16] 45-33 | 19-36] 31-14] 46-66 
14| 42-03] 18-44) 29-61] 43-42 15) 39-02} 19-47 | 28-78} 42-09 17| 35-75 | 10-30] 22-80} 39-23 
15] 41-68] 15-65} 27-94) 42-28 16} 38-77| 16-07 | 27-80) 42-60 18} 39-10} 15-96} 26-27 | 43-99 
16) 41-22! 16-48| 29-47] 42-85 17| 35-27| 15-35] 25-02] 39-96 19) 41:02} 16-07} 27-39 | 43-93 
17| 40-89] 17-82] 29.43} 42-90 18} 35-18] 13-18} 24-19] 36-92 20} 41-47] 17-92} 28-36] 43-81 
18] 40-14/ 18-23 | 29-19} 42-68 19} 33-93} 13-08] 24-75] 39-78 21] 43-21} 17-51] 29-75 | 43-86 
19le ss ais noe ye 920| --- ee eee Me 29] ... te ee ae 
20| 40-82] 16-07} 26.69) 41-04 21) 35-36] 16-17 | 26-83} 41-43 23) 43-35] 17-30] 29-43 | 44-64 
21) 38-56) 16-79 | 27-25} 40-79 22) 38-64] 18-13 | 28-78} 42-55 24| 43-75 | 17-20} 29-89} 44-61 
22) 40-61] 16-79} 28-02) 42-25 23) 42-83] 19:98} 30-86 | 43-25 25} 47-06} 18-75 | 30-17} 48-21 
23) 43-36) 15-45} 27-12) 41-11 24) 37-30] 11-23 | 24-47} 39-00 26) 47-70| 20-70 31-70} 47-89 
24| 33-17| 07-83 | 20-72) 32-87 25) 34:88 | 06-49} 20-99} 35-92 27| 44-69} 19-88} 30-31 | 47-27 
25) 35-89] 07-83] 22-39) 34-99 26) 35-24) 10-92) 23-77) 37-37 28) 40-54] 15-45 | 26-83 | 42.05 
96 cee see see oe 27 cee eee see ry 99 eee ove eee eee 
27| 36-59| 12-77] 24-20| 38-63 28| 32-74) 11-54] 23-63} 36-54 30} 40-75 | 18-23) 29-19 | 43-81 
28) 37-56) 11:74] 24-89] 40-16 29| 35-44] 12-05 | 25-72] 38-41 || Dec. 1) 44-00] 17-61 | 27-66 | 44-31 
29] 38-90] 13-80] 25-87] 40-81 30] 38-44] 13-29) 26-83} 38-53 2) 42-85 | 16-48 | 26-97 | 45-16 
30| 39-45] 12-67] 26-42] 42-74] Oct. 1] 37-32] 09-78] 25-58} 39-18 3) 30-03 | 00-62} 14:04] 34-91 
31) 41-07 | 16-27| 29-27! 42-58 2| 38-83 | 12-87} 28-22) 40-62 4| 37-93] 11-12] 22:52] 40-68 
Aug. 1] 41-54} 11-43] 23-08 | 36-76 3) 38-04] 12-15] 26:55 | 39-91 5| 36-02} 09-27 | 21-13) 39-86 
3| 35-10] 11-33} 23-77] 37-04|| © 5] 38-67] 16-27] 28-22] 42.91 7| 39-45 | 14-42] 25.44} 43-61 
4; 37-17} 10-00) 23-36 | 36-95 6] 40-55 | 13-60] 26-83} 42.49 8| 43-08] 16-38 | 27-39 | 44-54 
5| 36-53] 12-67| 24-75| 39-31 7| 39-73 | 14-52] 28-22} 42.36 9| 44-75 | 16-79} 29-61 | 46-26 
6} 38-48] 14-63] 24-88 | 40-16 8| 41-41) 14-01] 29-47] 42-71 10) 44-52} 18-23} 29-61 | 46-84 
7| 35-84} 14-83} 24-61 | 38:07 9| 32-66) 13-80| 26:00} 39-10 11} 44-03 | 18-75 | 29-75 | 46-94 
8) 38-30] 13-70} 24-61] 38-43 10) 36-25] 10-40} 24-61) 39-20 12) 41-95 | 18-44] 28-64] 46-38 
10} 38-81] 14-21] 26.00] 39.96 12) 38-15} 15.04} 27-53 | 40-70 14) 38-38} 14-42} 26-27] 44-37 
11) 37-91| 13-90] 27-25 | 41-37 13) 41-06] 15-86) 29-05 | 41-77 15] 38-36] 14-83 | 26-55} 42-98 
12} 39-90] 17-51} 27-80} 41-89 14) 40-15] 18-85] 30-31] 43-06 16) 39-22] 15-24] 25-72) 43-37 
13] 42-36] 17-30} 27.94 | 42.47 15} 38-48 | 17-30] 29-47 | 42-78 17} 40-54] 16-17] 26-97| 45-31 
14) 42-96 | 17-72} 28-78 | 43-55 16| 39-88 | 15-66] 29-89] 42.96 18} 40-79] 15-35 | 26-97) 43-99 
15] 37-86 | 13-29} 25-30 | 40-53 17| 38-15] 13-39) 27-11} 42-14 19} 44-82] 17-82) 28-50] 46-84 
1G G.. aa ee ase TaN cee ete Lee A 20| ... nt ifs Be 
17| 37-57| 13-18] 24-75 | 38-72 19) 43-22| 17-41] 30-03 | 45.32 21) 45-22] 18-75 | 29-33] 49-37 
18) 35-79| 12-67} 24.47] 38-99 20} 36-92] 11.23] 25-02} 40.23 22) 45-77| 17-92] 30-03| 48-83 
19] 40-05] 17-19] 28.22] 42-09 21) 31-45) 11-12] 24-47} 38.99 23) 46-84] 20-08] 31-42] 50-69 
20) 38-90} 17-30} 28-64] 42-79 22| 38-25 | 13-80] 25-86] 42.39 24| 45-41] 16-89 |[28-36]| 50-72 
21) 39-88) 17-51] 30-03 | 43-77 23) 39-53) 14-42} 26-00) 41-64 25) 45-80] 19-88] 30-17} 50-75 
22) 41-47) 14-83) 27-25] 41-62 24| 37-71) 10-61 | 22-66| 38-80 26] 46-83) 16-69] 31-70| 49-75 
eas: sae SHE abe OB aes te es eae Bill Vee Av ass ie 
24) 39-64] 13-49] 26.00) 39-86 26) 38-30] 14-11] 25-58] 43-06 28) 43.25) 19-88) 29-75] 46-95 
25) 40-93} 16-48 | 29.05} 43-33 27| 41-62 |[15-55 | 26-55 | 43-65 29) 46-69] 20-29} 29-19} 48-24 
26| 34-74] 13-18) 26-27 | 41-30 28| 42-28) 16-48| 28-92) 44-58 30] 38-19] 15-66} 24-75] 42-79 
27| 37-08} 13-49} 28-08 | 42-36 29| 41-28] 15-14) 27-66 | 43-88 31) 42-08} 17-61] 27-25] 45-26 
28) 39-85 | 16-48 | 27-94 | 42-26 30} 43-06 | 17-72} 30-17) 46-84]| 1846. 
29) 35-15} 09-68} 23-22] 35-21 31] 43-08] 17-10 | 29-75 | 45-24 ||Jan. 1] 43-75] .-- Hod 46-87 
30| --- Bay A eee || Nov. 1] --- Mie ae bee 2) 44-64] «-- bay IAG: 80 
31] 32-87] 10-92] 23-91} 37-58 2) 34-04 | 12-87]| 25-44} 41-21 3] ee: see tee see 
Sept. 1} 35-01} 11-02) 24-47} 36.20 3] 38-57 | 20-19) 27-53 | 42-30 4| 43-67 48-74 
2| 32-44] 10-09) 24-33 | 36-49 4) 39-85 | 17-92| 26-97 | 44-17 5] 45-38 : 48-82 
3) 34-03] 08-65 | 23-08 | 38-47 5| 38-67] 16-38 | 25-86] 43-04 6| 45-92 48-28 
4) 35-92) 12-98 | 24.88] 38-30 6] 42-02] 18-75 | 25-86} 42-55 7| 42-57 45:81 
5| 35-64] 13-70] 26-00 | 40-53 7| 37-83 | 13-49] 24-19} 41-16 8] 43-70] «+ 45-52 
: (= ee oe sie satd ie oe ake ; unt Ol AAG 7. ee 47.46 


