H 



Royal Society. 



have taken the results of all observers, and that their determinations 

 - often differ considerably from each other at the same place. Un- 

 fortunately I could not make use of the two important determina- 

 ? tions of the Euphrates Expedition for want of the Inclination. 



As you collect everything that can serve towards a final determi- 

 nation of the elements, I permit myself to subjoin the following data 

 which are still partly unpublished. 



Stations. 



Uellenorm 

 Dorpat* .. 

 Kardis ..... 



Bevel 



Nawast ... 

 Werderf ... 

 Arensburg 



KabbU 



Pernaw . . . 

 Tammiss ... 

 Kurkundt 

 Helsingfors 



Lat. 



N. 



Long, 

 E. 



Inclination. 



Date. 



BoUstad 



Kyrkstad .... 



Lambola 



Nukari 



Abborfors .... 



Gronwick 



Wiborg 



Turkbauta .... 



Tavastebus .... 



Wilman strand . 



Imatra Fall .... 



Huutjarwi .... 



Pumala \6i 



6i 

 6i 

 62 

 62 

 62 

 62 

 63 



59 35 



2§ 43 

 26 44 

 26 17 



*4 43 



35^5 34 

 35^3 40 

 1522 25 

 2022 40 

 2224 32 



2i!h 33 



8 24 59 



1024 57 



Webuwarpe 



Nyslott 



Tjokt 



Warkauss-Sluss . 



Johannisdal 



Kuopio.» 



Wa«a§ 



924 

 1024 



1523 

 2224 

 3026 



33;^7 

 4428 

 5024 

 024 

 4'28 

 1128 



28|24 



3228 



46|22 



52,^9 

 1821 



2027 



21 21 



551^7 

 5*1 



1847. 

 1847 

 to 

 1850. 

 1847. 

 1849. 



1847. 

 1849. 



1848. 

 1848. 

 1848. 

 1848. 

 1848. 

 1848. 

 1848. 

 1847. 

 849. 



Ob- 

 served. 



70 9-8 



70 507 



70 



17-1 



17-5 



17-3 

 54*4 

 45-8 



Re. 



ducedto 

 1830. 



70 38-0 



71 19-9 



3 . 



X 



70 48-3 



50-171 



41-071 



3r6'7o 

 5i-i|7i 

 9*3l7i 

 36-3:71 

 24-570 

 47-970 



21- 



I2-0 



2-6 



22*1 

 40-3 



7*3 

 55*5 

 18-9 



4737 

 465-4 



471-6 

 467-1 



469*3 



Vertical Force. 



1396-0 



1317-0 



1421-9 1347-1 



1388-4 



1311-2 



7 

 19-7 



847. 

 1847. 



847. 

 1847. 



847. 

 1847. 

 1847. 

 1847. 

 1847. 

 1847. 



55:1847. 

 2|i847. 



1847. 

 1847. 

 1847. 

 1847. 

 1847. 

 1847. 

 1847. 

 1847. 



20-771 

 30-271 

 21-9171 

 28-971 

 40-317* 

 19-8:71 

 3*'3:72 

 51-6171 

 14-672 



8-4I72 

 51-872 

 51-072 



2-372 



6-472 



59'9 

 43-0 

 32-4 

 27*3 73 

 54*3,73 

 0-873 



517 

 59*4 

 51*1 

 58-1 



49-Oi 



1*5 



20-8' 



43*8 

 37-6 

 21-0 



20-2 



31*5 

 37-1 

 35-6 

 29-1 

 12-2 

 1-6 

 56-5 

 23*5 

 30-0 



454*41384*21311*5 



4547!i374*5 ^o^** 

 484-6I 1385-4 1302-2 

 455'5ji388-8ii3i6-o 

 437*61354-81286-1 



458-411380-1 1305-9 

 459-0:1368-81293-6 

 476*2 1378-711298-0 



444*3 

 7-6 





1317-6 

 1318-0 



RhtfH- 



323*4 ^;l' 



0-6 



+ 29-1 





446-0 i394-3'i325-o 

 441*4 1391-41^323-2 

 442-6 1385-1I1316-2 



4427,1393-8,1325-4 

 44o-8| 1401-8, 1334-3 

 450'o|i4o6-2| 1335*9 

 44i*i!i393*i;n25-o 

 446-2 1360-9 1289-4 

 425-5 i395-iii332-2 



427*61394-711331*1 

 439'o 1410-2 1344-0 



433*6ji4ii-3|i344-8 

 433-51 1405-8! 1340-9 

 431-711406-9 ^^--'f' 



433*01409-3 

 437*211414-6 



419*4:141 1*7 

 420-1 1 1400- 1 

 399-4! 1402-6 

 4i5*5|i4i3*6 

 411-711442-0 



[342-6 

 1344-9 

 1349*1 

 1351-3 

 1339*1 

 1347-9 

 1354-6 



1351-01367-6 



* In the garden near ray house, and at different parts of the town and its en- 

 virons ; including diflfercnces of inclination of more than 1° 1 5'. 



t H. F. very anomalous. X Hanstcen, 1825, A Z= — 12-4. 



§ Hansteen, 1825, AZ = — 13-3. 



