164 REPORT—1849. 
numbers, apparently arising from the sunrise observations, which must render 
a more extended series necessary before a correct scale of ratios between the 
two series can be computed. 
Section 3.—Discussion of Observations between August 1, 1843, and 
December 31, 1844. 
The entire number of observations selected from the seventeen months 
constituting the earlier portion of the five years is 1897; of these 551 were 
made in the last five months of 1843, and 1346 in the year 1844. It is quite 
improbable that from a series of this kind an annual period could be deduced. 
The only epochs of observation adopted in 1843 and 1844, and continued 
during the remainder of the five years, were sunrise and sunset; they ac- 
cordingly, of all the observations, furnish an unbroken series during the 
whole period, and as such have been already examined. The epochs of the 
remaining observations, 9 A.M. and 3 p.m., having been discontinued at the 
end of 1844, the results furnished by them are necessarily very partial. In 
the discussion of 1843 and 1844 they have been incorporated with those of 
sunrise and sunset, and have been employed in the first instance in deducing 
the mean tensions in Table LXXIII., which are those of each day on which 
positive electricity only as a general rule has been observed. 
Tasie LXXIII. 
Mean electrical tension of each day from August 1, 1843, to December 31, 
1844, on which positive electricity only was observed. 

D.|Aug. Sept.| Oct. | Nov. | Dec. | Jan. | Feb. | Mar. | April.|May.| June. |July.|Aug.| Sept. | Oct. Noy. | Dee. 






div. | diy. | div. | div. | div. | div. | div. | div. | div. | diy. | div. | div. | div. | div. | div. | div. | div. 













19°75|39°25| 14°25) 85°25] 33°75) .. |111°25| 41°25/425- 38°75) 11° +» | +. |146°25] 20° | 44°25) 43°12 
.. |29° | 18:50/425° | 77°50|154°75/375° | 42°50)162°50|31-25| 30°75 | .. | .. | 98°75] 14°37] .. | 65°62 
. {21°75} 18°25] 59°50) 39°25|925° |372°50| 27°50) 66°25)27-12/ 31° [32° +» | 90°97| 6:25} >... |30%62 
.. |14°50} 12°75|158°75| 8°50/600° |407°50) .. 30°75/22°75| 21° .. 16°37} 19°62} 34°12) 49°37] 65°62 
'18°75]34°25| 33°25) 31° | 17°50) 15° (450° 76°25) .. |56°50) 23° +. |48°12] 18°37) 3*87|160°62/450° 
lig: |62:25) .. | 34°75] 42°25] 20°75/425° | 77°50) 54° |64-75| 5°25 |21'87/20°37| 25° | 16°37) 71°25|800- 
a7°75158° | 27" | 22° 17°25} 100° sa 38'75| 68°12)27-50| 8° |28°25/17-37] 30°25] 32°50) 65> 216-25 
22°75|/62°50| 18° | 62°75) 50° | 51°25) 55" | 51°66) 73°33/11: | 25°50 |37°50)12°50) 52°87) 57°50) .. | 71°25 
35°50139°25| .. |158°75| 63°75) 40° .- | 12°75] 56°25)21- | 13°25 |25* [15°75] 29°50) 3°75) 46°87) 35°25 
! 5501 .. | 51°25] 33°50] 22°25] 33°25) 48°75} .. | 32°75/17-50| 15°12 |34°37|52°50) 45°50) 21-37) 83°75) 50°62 
|46°25)13° .. 1345 | 25° | 52°50) 66:25] .. | 43°50)30°75| 23° |24°87|29°87) 43°25] 19°75] 58°12) 66°87 
15° |46°25|) .. |447°50|168°75) .. 69:75] .. 33°87|23°12| 23°87 |30°50/29°87| 32°75| 38°12) 16°5 | 76°87 
48°75|62°25| 27°50|428°75|225° .. |743°75| 42°50) .. |28°25] 10°50 |17°25|30°87) 34°12] 27°50) .. | 23°62 
24°75)77°50| 41° |233°75|175° .. {205° | 40°62) 15°75)21°50| 10°25 |26- -. | 33°50] 16°25) 76°25) 55°62 
~. [33° | 51°25)245° 28°25) 65° 9°75| 28° | 23°25/13'50| 14*- |20°62/20°87| 4°50) .. 12°50}195° 
.. |58°75| 27° | 43°75] 17°50/375° | 61°25) 15°75] 24°75)/21-50) 21°25 |39°62)41°87| 3°87) 41°66) 22°50/178°25 
'51°25|63°75| 30° |116°25]112°50/300° | 15°50) 6°50/152°12) 8-75] 29°12 |42°50/26°87| .. | 33°12) 13° [575° 
'66°33|47°50| 21°25] 68°25] 32°50) 38°75} 8°50) 35° | 25°75/16:75| .. | |30°87/26°62) 30°87) 39°75) 20°75/108°75 
136-25/39°25|107°50\198'75| 77°50| 42°50) 26°75] 24: | 33°50] 7°50) 10°75 |35°62/41°87| 60°62) 38°12) 37°50) 42°50 
5°75|/61°25| 43°50| .. 17°25] 38" | 36°25] 36°66) 12° |15°87| 13°25 |16°37)14°25] .. 16°75| 37°50} 62°50 
27°25|55° -» | 10°75] 13° | 60° .. | 72°50| 28°25/15: | 40°37 |32°37/30° | 15°33] 17°83)192°50| 57°50 
.. [37°75] 38°75| 53°33] 7°75/400° | 58°75| 33°75] 21° |14-75) 25°75 |41°25/20°62| .. | 39° |212°50)160" 
25° |48°75| 38°50} .. | 20°25) .. a 31* | 38°75)15: | 49°37 |63°12/35° “i -- |162°50| 68°75 
7+75|24'25] 20°75|300* | 20° |203°75) 37°50] 17°25) 12°50)16-37| 21°25 |51°62/35°87| .. | 55°83] 97°50) 58°75 
28° |19°25] 43°25) .. 42°50} 46°25} 53°75| 1°50) 26°75|16-12| .. |39°12|/30°62) 33°50) 45°66/111°25| 56°25 
20°50|24°75|104°75| 18°25] 26°25) 20°25] 30°25) 21°75/159°50)15°25| 30° |12°75}18°87| 60" | 23°75)136-25)375° 
48°75|15°25| 65° | 26° | 49°50} 42° | 52°50) 13° | 22° 15°75) 28°75 |16°25)31°25) 50° 59°37|180°62|650" 
.. |19°75| .. | 23°25/146°25| 13°25] 59°75) 34°50) 33°12] 8°75) 27°62 )26-62/52°50) 41°87/243°75|109°37)183"75 
3°25/38°75/116°25| 33°75| 55° | 28°75| 83°75| 76°25] 38°75/11* | 31°25 | 9°50\60- 6°75] 71°25] 41°50} 18°33 
36° | 8°50| .. {112°50/201°25) 32°75) .. 53°12} 45°50) .. | 38° |21°16)55°62) 39°37) 66°25) 49°37/408 12 
28°75] .. Me 38°75] .. .. | 51°50) .. |19°75) .. |19°87|27°50 


From this table has been formed Table LXXIV.,. which contains the 
greatest and least mean electrical tensions observed in each of the seventeen 
months, with their differences, and the days on which they occurred. 

